Expired Canadian patentCanada
Process and device for electrophotographic image generation and application of the process
CA 1063159 A · Owner: Konishiroku Photo Ind. Co. · Inventors: Hermann, Hans-Jurg F.
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Electrophoretic image generation involving a conductivity pattern and a field produced by electrodes which are shunted in the process of image formation the shunting, being interrupted for a predetermined time to minimize background.
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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 September 25, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 25, 1996.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Filed—
GrantedSeptember 25, 1979
Term endedSeptember 25, 1996
Patent numberCA 1063159 A
Classification (IPC)G03G13/24 +1 more
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.