Method for processing a silver halide color photosensitive material
CA 2000118 C · Owner: Fuji Photo Film Co. Ltd. · Inventors: Ishikawa, Takatoshi; Yoshida, Kazuaki
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method for processing a silver halide color photosensitive material is disclosed. The method comprises developing a color photographic light-sensitive material composed of a support having thereon at least one light-sensitive silver halide emulsion layer containing a silver halide comprising at least 80 mol% silver chloride; in a color developer solution comprising a primary amine color developing agent, and having a chloride ion concentration of from 3.5x10-2 to 1.5x10-1 mol/?, and a bromide ion concentration of from 3.0x10-5 to 1.0x10-3 mol/?. When used in rapid processing methods the, method according to the invention prevents fogging streaks, and provides high maximum density and low …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed October 2, 1989 and granted November 12, 1996. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 2, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 2, 2011.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
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Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.