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. 13, 1983
Filed:
Jan. 31, 1983
Applicant:
Inventor:
Emmett S McCaskill, Wellesley, MA (US);
Assignee:
Polaroid Corporation, Cambridge, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03C / ; G03C / ; G03C / ; G03C / ;
U.S. Cl.
CPC ...
430234 ; 430249 ; 430405 ; 430440 ; 430483 ; 430566 ;
Abstract
This application relates to the use of certain dihydro-benzotriazine compounds as photographic silver halide developing agents and to photographic processes, products and compositions which utilize the same. The compounds are effective developers in acid environment as well as in basic environment. Also described are novel dihydro-benzotriazine compounds.