Method of improving the colour balance of multicolour prints
CA 1248806 A · Owner: Agfa-Gevaert Naamloze Vennootschap · Inventors: Thiers, Christiaan G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Method of improving the colour balance of multicolour prints. Method of improving the colour balance of a multicolour reversal image obtained in a photographic material itself or obtained by a diffusion transfer reversal process in an image receiving material is provided, wherein said method comprises as illustrated in Fig. 3, the steps of : (1) providing a photographic silver halide material (4) capable of yielding in said material or in an image receiving layer a multicolour reversal image of average gradient of at least 1.8; (2) image-wise exposing said photographic material to or through a multi-colour continuous tone original (2) while keeping in the optical path between the original …
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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 January 17, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 17, 2006.
- 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.