Heat-developable light-sensitive material
CA 1256733 A · Owner: Fuji Photo Film Co. Ltd. · Inventors: Hirai, Hiroyuki; Yabuki, Yoshiharu; Sato, Kozo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A heat-developable light-sensitive material is described, containing a compound represented by formula (I) (I), wherein R1 represents a hydrogen atom a substituted or, unsubstituted alkyl group a substituted or unsubstituted, cycloalkyl group a substituted or unsubstituted alkenyl group, a substituted or unsubstituted alkynyl group a, substituted or unsubstituted aralkyl group a substituted or, unsubstituted aryl group a substituted or unsubstituted, heterocyclic group a substituted or unsubstituted alkylene group, a substituted or unsubstituted cycloalkylene group a, substituted or unsubstituted alkenylene group a substituted, or unsubstituted alkynylene group a substituted or unsub-, …
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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 July 4, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 4, 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.