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.:
Date of Patent:
Jun. 13, 1978
Filed:
Mar. 04, 1977
Applicant:
Inventor:
William R Lawton, Orchard Park, NY (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09D / ; G03C / ;
U.S. Cl.
CPC ...
106 21 ; 8-2 ; 8-4 ; 8-7 ; 96 9 / ; 252-1 ; 428913 ; 106 26 ;
Abstract
A heat reactive recording composition capable of acquiring a stable color in selected regions contrasting with the background color of the sheet upon exposing these regions to an elevated temperature and comprising a paper or polymeric film substrate and a coating comprising (1) an N-substituted condensation product of a heterocyclic diimino compound and an aromatic aldehyde and (2) a cyclic polyketo compound reactive with amines and amides at elevated temperatures to form a color.
Lawton, William. (1978). Heat-sensitive recording composition (U.S. Patent No. 4094687). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4094687
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile