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USD312691S - Threaded heatless concentrator - Google Patents

Threaded heatless concentrator Download PDF

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Publication number
USD312691S
USD312691S US07/133,695 US13369587F USD312691S US D312691 S USD312691 S US D312691S US 13369587 F US13369587 F US 13369587F US D312691 S USD312691 S US D312691S
Authority
US
United States
Prior art keywords
heatless
concentrator
threaded
view
ornamental design
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
US07/133,695
Inventor
Paul S. Spock
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sigma Aldrich Co LLC
Original Assignee
Supelco 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 Supelco Inc filed Critical Supelco Inc
Priority to US07/133,695 priority Critical patent/USD312691S/en
Assigned to SUPELCO INC., A DE CORP. reassignment SUPELCO INC., A DE CORP. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: SPOCK, PAUL S.
Application granted granted Critical
Publication of USD312691S publication Critical patent/USD312691S/en
Assigned to S.A.C. CORPORATION reassignment S.A.C. CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: SUPELCO, INC.
Assigned to SUPELCO, INC. reassignment SUPELCO, INC. CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). Assignors: S.A.C. CORPORATION
Assigned to SIGMA-ALDRICH COMPANY reassignment SIGMA-ALDRICH COMPANY ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: SUPELCO, INC.
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Description

FIG. 1 is a front elevational view of a threaded heatless concentrator, showing my new design;
FIG. 2 is a side elevational view thereof, turned 90° with respect to FIG. 1;
FIG. 3 is a top plan view thereof;
FIG. 4 is a bottom plan view thereof; and
FIG. 5 is a perspective view thereof.

Claims (1)

  1. The ornamental design for a threaded heatless concentrator, as shown and described.
US07/133,695 1987-12-16 1987-12-16 Threaded heatless concentrator Expired - Lifetime USD312691S (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US07/133,695 USD312691S (en) 1987-12-16 1987-12-16 Threaded heatless concentrator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/133,695 USD312691S (en) 1987-12-16 1987-12-16 Threaded heatless concentrator

Publications (1)

Publication Number Publication Date
USD312691S true USD312691S (en) 1990-12-04

Family

ID=64452592

Family Applications (1)

Application Number Title Priority Date Filing Date
US07/133,695 Expired - Lifetime USD312691S (en) 1987-12-16 1987-12-16 Threaded heatless concentrator

Country Status (1)

Country Link
US (1) USD312691S (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4391779A (en) 1981-07-06 1983-07-05 Miskinis Robert J Teflon ground glass adaptor
USD296241S (en) 1985-04-15 1988-06-14 Miskinis Robert J Laboratory glass joint

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4391779A (en) 1981-07-06 1983-07-05 Miskinis Robert J Teflon ground glass adaptor
USD296241S (en) 1985-04-15 1988-06-14 Miskinis Robert J Laboratory glass joint

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