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:
Dec. 06, 1983
Filed:
Sep. 22, 1982
Applicant:
Inventor:
Noreen J Pillitteri, Spring Valley, NY (US);
Assignee:
Keuffel & Esser Company, Morristown, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03C / ;
U.S. Cl.
CPC ...
430179 ; 430171 ; 430177 ;
Abstract
Caprolactam, caprylolactam, and azacyclooctanone have been found to be equally effective as thiourea in stabilizing diazotype compositions and materials against pre-coupling, loss of shelf life, and dye image fading.