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:
Mar. 07, 1978
Applicant:
Inventors:
Ronald F Lambert, Wayland, MA (US);
Karl J Schreiber, Waban, MA (US);
Assignee:
Polaroid Corporation, Cambridge, MA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G03C / ; G03C / ; G03C / ; G03C / ;
U.S. Cl.
CPC ...
96 2 / ; 96-3 ; 96 2 / ; 96 6 / ; 96 7 / ; 96 7 / ; 96 77 ; 96 8 / ;
Abstract
Novel photographic developing compositions adapted for the processing of an exposed film unit in the light, which processing compositions include at least one light-absorbing material and an inorganic cation exchange resin, e.g., an aluminosilicate polymer such as those present in natural or synthetic clays; and photographic systems employing the same.