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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 4154107 B1

PDFFull Text
Date of Patent:
May. 15, 1979

Filed:

Mar. 07, 1978

Time temperature indicating device

Applicant:
Inventors:

Egenius A Giezen, Rheden, NL;

Cornelis A Hoefs, Elst, NL;

Abram Opschoor, Dieren, NL;

Eduard M Verhulst, Zevenaar, NL;

Assignee:

Akzona Incorporated, Asheville, NC (US);

Attorneys:

Young; Francis W.

Carter; David M.

Primary Examiner:

S Clement Swisher

Int. Cl.
CPC ...
G01K / ;
U.S. Cl.
CPC ...
73356 ;
Abstract

There is provided a time temperature device having an indicator layer which visually indicates the lapse of a time temperature integral. A signaling component is provided which, upon contact with the indicating layer, causes the indicator layer to undergo a visually perceptive change. The device further includes a reservoir for the signaling component, including a first backing and adhesive layer containing an adhesive substance. The adhesive layer is positioned between the indicating layer and the first backing.

Find Patent Forward Citations

Giezen, Egenius. (1979). Time temperature indicating device (U.S. Patent No. 4154107). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4154107

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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