Electrophotographic papers employing organic photoconductors sensitized with cellulose nitrate
CA 1112934 A · Owner: Eastman Kodak Company · Inventors: Yoerger, William E.; Van Allan, James A.; Regan, Michael T.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure, Electrophotographic papers comprising electrically conducting paper supports and photoconductive insulating compositions in the form of organic photoconductive dispersions are described. Particles of certain polyphenyl organic photoconductors with para-linked phenyl groups or polyarylated, unsaturated organic photoconductors are dispersed in cellulose, nitrate to provide useful photoconductive insulating dispersions. -1-
Read the whole patent
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 November 24, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 24, 1998.
- 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.