[go: up one dir, main page]

WO1996039905A1 - Matelas et procede destine a empecher l'accumulation de dioxyde de carbone dans la literie - Google Patents

Matelas et procede destine a empecher l'accumulation de dioxyde de carbone dans la literie Download PDF

Info

Publication number
WO1996039905A1
WO1996039905A1 PCT/US1996/008038 US9608038W WO9639905A1 WO 1996039905 A1 WO1996039905 A1 WO 1996039905A1 US 9608038 W US9608038 W US 9608038W WO 9639905 A1 WO9639905 A1 WO 9639905A1
Authority
WO
WIPO (PCT)
Prior art keywords
mattress
assembly
accordance
air
top cover
Prior art date
Application number
PCT/US1996/008038
Other languages
English (en)
Inventor
William R. Schmid
Original Assignee
Halo Sleep Systems, Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Halo Sleep Systems, Inc. filed Critical Halo Sleep Systems, Inc.
Priority to AU59542/96A priority Critical patent/AU711093B2/en
Priority to GB9725769A priority patent/GB2316311B/en
Publication of WO1996039905A1 publication Critical patent/WO1996039905A1/fr

Links

Classifications

    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47CCHAIRS; SOFAS; BEDS
    • A47C21/00Attachments for beds, e.g. sheet holders or bed-cover holders; Ventilating, cooling or heating means in connection with bedsteads or mattresses
    • A47C21/04Devices for ventilating, cooling or heating
    • A47C21/042Devices for ventilating, cooling or heating for ventilating or cooling
    • A47C21/044Devices for ventilating, cooling or heating for ventilating or cooling with active means, e.g. by using air blowers or liquid pumps
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47DFURNITURE SPECIALLY ADAPTED FOR CHILDREN
    • A47D15/00Accessories for children's furniture, e.g. safety belts or baby-bottle holders
    • A47D15/001Mattresses

Definitions

  • the present invention relates to an apparatus and method for preventing the accumulation of carbon dioxide in bedding which is believed to be a cause or contributing factor in Sudden Infant Death Syndrome (SIDS) .
  • SIDS Sudden Infant Death Syndrome
  • the present invention relates to an apparatus and method for preventing the accumulation of carbon dioxide in bedding which is believed to be a cause or contributing factor in Sudden Infant Death Syndrome (SIDS) .
  • SIDS Sudden Infant Death Syndrome
  • the invention relates to a mattress assembly, comprising: substantially nonporous bottom and side walls forming a mattress foundation; a mattress inner core disposed in the mattress foundation being permeable to air; a nonporous top cover covering the mattress inner core, the nonporous top cover having apertures at predetermined locations to allow the flow of air therethrough; and a fan disposed with the mattress assembly for forcing air into the mattress inner core whereby the air is forced out the top cover so as to reduce the accumulation of carbon dioxide in bedding on the top cover of the mattress.
  • the invention in yet another embodiment, relates to a method of reducing the accumulation of carbon dioxide in bedding, comprising the steps of: forming a mattress having substantially nonporous bottom and side walls and a nonporous top cover having apertures at predetermined locations to allow the flow of air therethrough; and forcing air into an interior area of the mattress at a sufficient rate to percolate air through the top cover of the mattress.
  • Figure 1 is a perspective view of a preferred embodiment of a mattress assembly in accordance with the principles of the present invention disposed in a crib, an infant being illustrated as resting on the mattress assembly;
  • Figure 2 is an exploded view of the mattress assembly shown in Figure 1;
  • Figure 3 is an enlarged partial sectional view illustrating air flow from the innerspring of the mattress assembly through the frame and bumper assembly and out the side walls of the frame and bumper assembly into the infant sleeping area;
  • Figure 4 is a partial perspective view illustrating an embodiment of a latch mechanism for latching the frame assembly onto the sidewalls of the mattress assembly foundation
  • Figure 5 is a partial perspective view illustrating the frame assembly being pivoted into an open position whereby it is no longer resting on top of the sidewalls of the mattress assembly foundation;
  • Figure 6 is a partial side view of fastener mechanism for fastening the bumper assembly onto the frame assembly
  • Figure 7 is a partial cross sectional view illustrating an embodiment of the fan assembly disposed in a sidewall of the mattress assembly foundation
  • Figure 8 is a planar view of a top cover of the mattress assembly; and Figure 9 is an alternate embodiment of an apparatus for attaching the top surface of the mattress assembly and the mattress bedding onto the mattress foundation.
  • FIG. 1 Illustrated in Figure 2 is an exploded view of the embodiment of the mattress assembly 30 shown in Figure 1.
  • the mattress assembly 30 shown includes a foundation 40, an innerspring 50, a top cover 60, mattress bedding 70, a frame assembly 80, and a bumper assembly 90.
  • the foundation 40 includes substantially nonporous side walls 41 and a bottom wall 42 so as to form an air impermeable foundation for the mattress.
  • the walls 41,42 might be molded as a single piece from plastic or the like.
  • Angle brackets 47 are shown disposed on the bottom wall 42 for centering the inner spring 50. These angle brackets 47 might be separate pieces or they might be integrally molded with the foundation 40.
  • a fan assembly housing 43 housing a fan 49.
  • a heater 45 disposed on a top surface of the bottom wall.
  • a heater might be present in the fan housing 43 as a heater coil 46 or the like.
  • the fan housing 43 will include suitable circuitry for controlling operation of the fan 49 and the heater 45/46.
  • switches 44a,b are two switches 44a,b.
  • Switch 44a is a master on off switch for the fan 49 and the heater 45/46 and switch 44b is for the heater 45/46 only.
  • the inner spring 50 is removably mounted in the mattress foundation 40.
  • the inner spring 50 includes a plurality of coils 54 defining an open area for air flow. Air flow in the several views is generally illustrated by the arrows 56.
  • the mattress foundation 40 might further include individual guides or receptors (not shown) disposed on the bottom wall 42 for receiving each of the coils 54 to further assist in positioning of the inner spring 50.
  • the inner spring 50 is preferably made of non-corrosive, washable material because of possible contact with saliva, sputum, urine, etc. A preferred material is galvanized spring steel.
  • the top cover 60 is preferably made of a soft, nonporous material such as natural or synthetic rubber, vinyl, etc. so as to not harbor and provide a growth environment for bacteria or the like.
  • Holes 61 are spaced preferably less than 2 cm apart, more preferably less than 1.5 cm apart, and most preferably on 1 cm staggered centers or less to insure that air is delivered from the innerspring 50 through the top cover 60 to at least one nostril of the infant.
  • the diameter of the holes 61 must be large enough to prevent closing from lint, dust, etc. and yet small enough to build static pressure adequate to force air with sufficient velocity through the bedding. Over pressurizing will create air flow volumes that may cause hypothermia in infants. Under pressurizing will not have the desired effect on the bedding.
  • Hole diameter should preferably be 3/16 inches when using fan volumes of 100 cubic feet per minute (cfm) to 170 cfm at static pressures of 0.04 inches H20 to 0.08 inches H20 and most preferably 1/8 inch diameter when used with total air flow of 25 cfm to 55 cfm at 0.02 inches H20 to 0.05 inches H20 static.
  • the top cover 60 of the mattress includes apertures 62, such as eyelets or grommets, which are receivable on spaced apart projections 64 disposed on top of the side walls 41, whereby the top cover 60 is attached to the mattress foundation 40 in a taught condition.
  • the bedding 70 is shown as including elasticized straps 72 about its periphery with apertures 74, such as eyelets or grommets, which are receivable on the projections 64, whereby the mattress bedding 70 is attached to the mattress foundation in a taught condition.
  • the projections are angled outward so as to facilitate retention of the top cover 60 and the bedding 70.
  • the top cover 60 and the bedding 70 are taught when secured onto the projections 64.
  • top cover 60 is readily removable to facilitate the cleaning of its top and bottom surfaces of saliva, sputum, urine, etc. that may collect on the top cover 60 or pass through the apertures 61 to the bottom surface of the top cover 60.
  • the top cover 60 is simply removed or placed in position by sliding it off of and onto the projections 64.
  • the top cover 60 and likewise the bedding 70 might include hooks 75 for engaging an overhanging portion 77 of the foundation 40 created by an indentation 73 disposed about the perimeter of the foundation 40 in the outside surface of the side walls 41.
  • the hooks 75 of the bedding 70 and the top cover 60 would be spaced apart from one another so they do not overlap. This arrangement would allow the hooks 75 to be attached at any location about the perimeter of the foundation 40.
  • tools might be required.
  • the mattress bedding 70 functions both as a mattress pad and sheet.
  • the bedding 70 is of sufficient thickness to assure infant comfort yet be constructed of a material that when used in conjunction with the specified air flow and velocity prevents dangerous accumulations of C02.
  • a preferred embodiment shall be a coarsely woven, linen-like outer layer sandwiching a natural cotton batting interior devoid of resins or glues. In alternate embodiments, other porous materials might be used.
  • the mattress bedding 70 is attached to the projections 64 on the foundation 40 and then the frame assembly 80 is disposed over the straps 72.
  • the edges of the mattress bedding 70 might then be suitably attached to the frame assembly 80 and/or bumper assembly 90 by the use of straps of material 76 suitably secured to the bedding 70 which can be wrapped up and over the frame assembly 80 and/or the bumper assembly 90 and fastened thereto by VELCROTM strips 93 or the like.
  • the mattress bedding 70 might attach directly to the frame assembly 80 and/or the bumper assembly 90 so as to obviate the need to remove and replace the frame/bumper assembly when changing sheets.
  • the mattress foundation 40 preferably shall include rigid, impermeable, nonporous material such as plastic or wood. This will provide rigidity for keeping the top cover 60 and the mattress bedding 70 taught. As shown in Figures 2 and 7, it will provide a rigid compartment for installing the fan housing 43.
  • the mattress foundation is preferably made of a material which is easily cleaned and resistant to harboring bacteria.
  • the innerspring 50 has a slightly smaller outer dimension than the inner dimension of the frame assembly 80 and is slightly higher so that when the frame assembly 80 and/or bumper assembly 90 is attached, the top cover 60 and the mattress bedding 70 are pulled down over the edges of the innerspring 50 thereby forming a slightly convex top surface.
  • the frame assembly 80 and the bumper assembly 90 might be a single assembly as opposed to two separate assemblies.
  • the frame assembly 80 preferably has a height of 1.5 inches or less while the bumper assembly 90 preferably has a height of 4 to 6 inches.
  • both assemblies preferably comprise a rigid frame 81 and 91 respectively covered with a nonporous material 82 and 92, respectively, having a plurality of apertures in it.
  • the configuration and arrangement of the apertures is preferably the same as that for the top cover 60.
  • a bottom edge of the frame assembly 80 is preferably open to allow flow of air from the innerspring 50 through the top cover 60 and into a cavity in the frame assembly 80. The air will then pass out the apertures in the material 82 and into a cavity of the bumper assembly 90 where in turn the air will then pass out the apertures in the material 92 as generally illustrated by the arrows 56.
  • the frame assembly 80 will provide a seal with the top surface of the mattress foundation to prevent air leakage out the sides of the mattress assembly.
  • the frame assembly 80 includes cavities 88 in alignment with and positionable over the projections 64 so as to allow the frame assembly 80 to form a seal with the mattress foundation 40.
  • mechanical latches 86 preferably requiring no tools, attach the frame assembly 80 to the mattress foundation 40 and allow the frame assembly 80 to be removed and/or pivoted upward as shown in Figure 5.
  • Latches 96 preferably requiring no tools, attach the bumper assembly 90 to the frame assembly 80.
  • the latches 96 can be moved laterally to avoid interference with crib pickets.
  • the fan assembly is preferably a modularized assembly for easy removal by hand and without the aid of tools.
  • the mattress assembly 30 can be sold with or without the fan assembly.
  • the fan assembly preferably can be readily added or replaced as needed.
  • the fan assembly is compatible with future portable mattresses such as those used in bassinets or other types of portable playpens.
  • the fan housing 43 upon removal of the frame assembly 80 the fan housing 43 can be preferably slid into place without the aid of tools.
  • the wall of the mattress foundation 40 is open at the top so as to allow the fan housing 43 to be inserted and removed through the top of the foundation wall.
  • the off/on switches 44a,b shall be inaccessible to infants or made tamperproof to prevent inadvertent stoppage of the fan. Options could include controls recessed under a latching cover or "lock-lever" type switches.
  • the heater 45 is preferably non-adjustable to maintain fixed temperature at the low end of the infant's thermoneutral range of 23-27 degress Centigrade. This is important to prevent accidental overheating which is known to contribute to SIDS while also preventing hypothermia when using unconditioned room air.
  • a preferred embodiment will include an integral fixed temperature thermostat.
  • an inlet of the fan 49 will include a media filter 53 to reduce the possibility of the top surface perforations plugging with lint or dirt. Standard finger guards shall be used on the inlet and outlet of the media filter 53. This arrangement will filter the air before it reaches the compartment where the fan is located.
  • the fan's electrical cord will have a tamperproof plug that fastens or locks securely to a wall outlet so as to prevent inadvertent stoppage of the fan 49.
  • the tamperproof plug might also include a transformer to convert to low voltage AC or DC current.

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Pediatric Medicine (AREA)
  • Mattresses And Other Support Structures For Chairs And Beds (AREA)

Abstract

Cet ensemble matelas (30) comprend: un fond (42) et des parois (41) latérales, essentiellement non poreux et formant une infrastructure (40); un corps intérieur formant matelas (50), perméable à l'air et placé dans l'infrastructure (40); un surmatelas (60) non poreux recouvrant le matelas (50), et présentant des ouvertures (61) au niveau d'emplacements déterminés, afin de permettre la circulation de l'air à travers celles-ci; ainsi qu'un ventilateur (49) installé dans l'ensemble matelas (30), afin de faire entrer de l'air dans le matelas (50), l'air étant ainsi forcé de s'échapper par le surmatelas (60), et de réduire l'accumulation de dioxyde de carbone dans la literie, et notamment dans le surmatelas (60) de l'ensemble matelas (30).
PCT/US1996/008038 1995-06-07 1996-05-30 Matelas et procede destine a empecher l'accumulation de dioxyde de carbone dans la literie WO1996039905A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU59542/96A AU711093B2 (en) 1995-06-07 1996-05-30 Mattress and method for preventing accumulation of carbon dioxide in bedding
GB9725769A GB2316311B (en) 1995-06-07 1996-05-30 Mattress and method for preventing accumulation of carbon dioxide in bedding

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US48176795A 1995-06-07 1995-06-07
US08/481,767 1995-06-07

Publications (1)

Publication Number Publication Date
WO1996039905A1 true WO1996039905A1 (fr) 1996-12-19

Family

ID=23913312

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1996/008038 WO1996039905A1 (fr) 1995-06-07 1996-05-30 Matelas et procede destine a empecher l'accumulation de dioxyde de carbone dans la literie

Country Status (4)

Country Link
AU (1) AU711093B2 (fr)
CA (1) CA2221150A1 (fr)
GB (1) GB2316311B (fr)
WO (1) WO1996039905A1 (fr)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU710246B2 (en) * 1995-10-18 1999-09-16 Aprica Kassai Kabushiki Kaisha Crib
FR2901110A1 (fr) * 2006-05-16 2007-11-23 Mouton Gerard Robert Maurice Matelas de support pour lit et lit associe contre difficultes respiratoires ou maladies de peau et notamment contre le syndrome de la mort subite du nourrisson
DE102014017533A1 (de) 2014-11-21 2016-05-25 Jrp Vision Ltd. Luftzuführeinrichtung
WO2016078773A1 (fr) 2014-11-21 2016-05-26 Red Gmbh Dispositif d'amenée en air
EP3427613A1 (fr) 2017-07-13 2019-01-16 Avea Capital Ltd Dispositif d'amenée d'air respiratoire dans une zone d'air respiratoire
WO2022191703A1 (fr) * 2021-03-10 2022-09-15 Pure-Development 1 B.V. Structure de support pour meuble climatisé
NL2027734B1 (en) * 2021-03-10 2022-09-27 Pure Dev 1 B V Support construction for conditioned furniture, and associated systems and methods
US11678748B2 (en) 2021-03-10 2023-06-20 Pure-Development 1 B.V. Upholstery support arrangement, including airflow arrays for conditioned furniture, and associated systems and methods
US11744378B2 (en) 2021-03-10 2023-09-05 Pure-Development 1 B.V. Support construction for conditioned furniture, and associated systems and methods
US11779127B2 (en) 2021-03-10 2023-10-10 Pure-Development 1 B.V. Air handling unit for environmentally conditioned furniture, and associated systems and methods
US12022955B2 (en) 2021-03-10 2024-07-02 Pure-Development 1 B.V. Environmentally conditioned furniture, and associated systems and methods

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6478239B2 (en) 2000-01-25 2002-11-12 John Zink Company, Llc High efficiency fuel oil atomizer
CN103504873B (zh) * 2013-03-27 2017-02-08 连新兰 一种微风婴儿床

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US206980A (en) * 1878-08-13 Improvement in sofa-beds
US494560A (en) * 1893-04-04 Charles m
GB189814908A (en) * 1898-07-06 1898-10-22 Pilade Chiantore Improved Bed-sheet for Army and other Uses.
DE876759C (de) * 1950-01-25 1953-05-18 Walther Dipl-Ing Rinne Sitz- und Liegemoebel
US2995762A (en) * 1960-01-18 1961-08-15 Miller Herman Inc Appointments for beds
US3266064A (en) * 1963-03-29 1966-08-16 Figman Murray Ventilated mattress-box spring combination
US4134167A (en) * 1976-06-02 1979-01-16 Sun Royal Co., Ltd. Composite padding material
US4309999A (en) * 1979-03-28 1982-01-12 Holger Lueder Equipment for the homogeneous radiant conditioning of a room enclosure for therapeutic purposes
US4370765A (en) * 1980-09-05 1983-02-01 Webber Gloria C Envelope for a bed having side rails
US4391009A (en) * 1980-10-17 1983-07-05 Huntleigh Medical Ltd. Ventilated body support
US4953246A (en) * 1990-04-02 1990-09-04 Matthews O H Cubicle bed
US5389037A (en) * 1993-07-15 1995-02-14 Hale; Theodore M. Method and apparatus for improving the respiratory efficiency of an infant

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US206980A (en) * 1878-08-13 Improvement in sofa-beds
US494560A (en) * 1893-04-04 Charles m
GB189814908A (en) * 1898-07-06 1898-10-22 Pilade Chiantore Improved Bed-sheet for Army and other Uses.
DE876759C (de) * 1950-01-25 1953-05-18 Walther Dipl-Ing Rinne Sitz- und Liegemoebel
US2995762A (en) * 1960-01-18 1961-08-15 Miller Herman Inc Appointments for beds
US3266064A (en) * 1963-03-29 1966-08-16 Figman Murray Ventilated mattress-box spring combination
US4134167A (en) * 1976-06-02 1979-01-16 Sun Royal Co., Ltd. Composite padding material
US4309999A (en) * 1979-03-28 1982-01-12 Holger Lueder Equipment for the homogeneous radiant conditioning of a room enclosure for therapeutic purposes
US4370765A (en) * 1980-09-05 1983-02-01 Webber Gloria C Envelope for a bed having side rails
US4391009A (en) * 1980-10-17 1983-07-05 Huntleigh Medical Ltd. Ventilated body support
US4953246A (en) * 1990-04-02 1990-09-04 Matthews O H Cubicle bed
US5389037A (en) * 1993-07-15 1995-02-14 Hale; Theodore M. Method and apparatus for improving the respiratory efficiency of an infant

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU710246B2 (en) * 1995-10-18 1999-09-16 Aprica Kassai Kabushiki Kaisha Crib
FR2901110A1 (fr) * 2006-05-16 2007-11-23 Mouton Gerard Robert Maurice Matelas de support pour lit et lit associe contre difficultes respiratoires ou maladies de peau et notamment contre le syndrome de la mort subite du nourrisson
DE102014017533A1 (de) 2014-11-21 2016-05-25 Jrp Vision Ltd. Luftzuführeinrichtung
WO2016078773A1 (fr) 2014-11-21 2016-05-26 Red Gmbh Dispositif d'amenée en air
US10786694B2 (en) 2014-11-21 2020-09-29 Avea Capital Ltd. Air-supply device
EP3427613A1 (fr) 2017-07-13 2019-01-16 Avea Capital Ltd Dispositif d'amenée d'air respiratoire dans une zone d'air respiratoire
WO2022191703A1 (fr) * 2021-03-10 2022-09-15 Pure-Development 1 B.V. Structure de support pour meuble climatisé
NL2027734B1 (en) * 2021-03-10 2022-09-27 Pure Dev 1 B V Support construction for conditioned furniture, and associated systems and methods
US11678748B2 (en) 2021-03-10 2023-06-20 Pure-Development 1 B.V. Upholstery support arrangement, including airflow arrays for conditioned furniture, and associated systems and methods
US11744378B2 (en) 2021-03-10 2023-09-05 Pure-Development 1 B.V. Support construction for conditioned furniture, and associated systems and methods
US11779127B2 (en) 2021-03-10 2023-10-10 Pure-Development 1 B.V. Air handling unit for environmentally conditioned furniture, and associated systems and methods
US12022955B2 (en) 2021-03-10 2024-07-02 Pure-Development 1 B.V. Environmentally conditioned furniture, and associated systems and methods

Also Published As

Publication number Publication date
AU5954296A (en) 1996-12-30
CA2221150A1 (fr) 1996-12-19
GB9725769D0 (en) 1998-02-04
AU711093B2 (en) 1999-10-07
GB2316311A (en) 1998-02-25
GB2316311B (en) 1999-09-22

Similar Documents

Publication Publication Date Title
US6052853A (en) Mattress and method for preventing accumulation of carbon dioxide in bedding
AU711093B2 (en) Mattress and method for preventing accumulation of carbon dioxide in bedding
US4991244A (en) Border for air bed
US10827845B2 (en) Support cushions including a support insert with a bag for directing air flow, and methods for controlling surface temperature of same
TW416864B (en) Air treatment system
AU752471B2 (en) Dual filter assembly for a vacuum cleaner
US3812370A (en) Low cost portable room air cleaner
US6954955B2 (en) Infant sleep positioner
US3878570A (en) Environmental control attachment and crib
US20070012192A1 (en) Air Treatment System
US20030126992A1 (en) Indoor fan filter
EP1314380A2 (fr) Ensemble matelas
US4591368A (en) Built-in vacuum system
WO2001084982A1 (fr) Dispositifs de couchage ventiles
US6131216A (en) Method and apparatus for removing heavy gases from infant cribs
US20030000014A1 (en) Easy-change mattress safety sheet system
US5546618A (en) Ventilated mattress for infants
KR100256184B1 (ko) 공기처리시스템
WO1993018690A1 (fr) Berceau pour bebe
CN223283194U (zh) 宠物净化器
JP2023545868A (ja) 環境制御を有する3次元マットレスシステム
US5022108A (en) Waterbed mattress with heater pad pocket
CA1151781A (fr) Couchette a matelas rempli d'eau
CN202311015U (zh) 电子变频除螨仪
CN210718015U (zh) 一种便于拆卸的空调过滤网

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AL AM AT AU AZ BB BG BR BY CA CH CN CZ DE DK EE ES FI GB GE HU IS JP KE KG KP KR KZ LK LR LS LT LU LV MD MG MK MN MW MX NO NZ PL PT RO RU SD SE SG SI SK TJ TM TR TT UA UG UZ VN AM AZ BY KG KZ MD RU TJ TM

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): KE LS MW SD SZ UG AT BE CH DE DK ES FI FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN ML

DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
121 Ep: the epo has been informed by wipo that ep was designated in this application
ENP Entry into the national phase

Ref document number: 2221150

Country of ref document: CA

Ref document number: 2221150

Country of ref document: CA

Kind code of ref document: A

WWE Wipo information: entry into national phase

Ref document number: 9725769.5

Country of ref document: GB

REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

122 Ep: pct application non-entry in european phase