Amorphous selenium coating
CA 1050703 A · Owner: Addressograph-Multigraph Corporation · Inventors: Miller, Norman C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
INVENTOR: Norman C. Miller, TITLE: AMORPHOUS SELENIUM COATING ABSTRACT OF THE DISCLOSURE, A photoconductive coating having an improved charge acceptance is produced by vacuum evaporation of amorphous selenium in the presence of an inert gas.
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 March 20, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 20, 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.
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.