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:
Mar. 13, 1979
Filed:
Sep. 18, 1974
Applicant:
Inventor:
Howard C Haas, Arlington, MA (US);
Assignee:
Polaroid Corporation, Cambridge, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03C / ; G03C / ; C08G / ; C08G / ;
U.S. Cl.
CPC ...
96 2 / ; 250316 ; 526 521 ; 526 523 ; 526 524 ; 526 525 ; 526 522 ; 526262 ;
Abstract
This invention relates to methods of generating colored images by treatment of maleimide copolymers with ammonia or organic amines.