Semi-automatic document handler
CA 1058689 A · Owner: Xerox Corporation · Inventors: Caldwell, John R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Improved document handling for a xerographic copier with automatic ejection of documents from the copying platen by sheet drive wheels in a latchable self-lifting platen cover. The document flattening imaging surface of the platen cover is adjustably spaced slightly above the platen for low friction document removal but maintained copying focus without, unlatching the platen cover. The imaging surface is stationary smooth and continuous so as not to affect copying on the platen. - 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 July 17, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 17, 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.