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. 01, 1983
Filed:
Oct. 30, 1981
Edward P Abel, Webster, NY (US);
Edward Weissberger, Pittsford, NY (US);
Eastman Kodak Company, Rochester, NY (US);
Abstract
Photographic assemblages, elements, receiving elements and cover sheets comprise a combination of two timing layers and a neutralizing layer for use with negative-working silver halide emulsions and positive-working redox dye-releasers. The outermost timing layer has a negative temperature coefficient and has a development accelerator associated therewith to increase the development of the silver halide emulsion at low temperatures. The timing layer next to the neutralizing layer has a greater penetration time by the alkaline processing composition so that the neutralizing layer is permeated only after silver halide development has been substantially completed. The temperature latitude of the system is thereby increased.