Silver halide color photographic light-sensitive material
CA 1303892 C · Owner: Komorita, Kazuo · Inventors: Komorita, Kazuo; Onodera, Kaoru
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A silver halide color photographic light-sensitive material is disclosed, which is satisfactory in the overall discoloration color balance of a dye image composed of yellow, magenta and cyan dyes in the light discoloration as well as in the dark discoloration and produces little or no yellow color stain when stored being exposed to a light or in the dark over an extensive period of time and which is excellent in the quality of the dye image even when stored over an extensive period of time. The color photographic material comprises a silver halide emulsion layers containing a specific yellow dyeforming coupler, a silver halide emulsion layer containing a specific magenta dye-forming coupler …
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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
- Granted June 23, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 23, 2009.
- 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
Timeline From CIPO dates
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.