Patent Yard Sign in
Expired Canadian patentCanada

Very high speed duplicator with document handling

CA 1192581 A · Owner: Xerox Corporation · Inventors: Gerken, William G.

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

Open the CIPO record

Abstract From the Canadian patent

A document handling apparatus for a duplicating machine or copier is disclosed and includes a turnaround roller arranged between an exposure platen for the copier and a document sheet supply tray for directing document sheets fed from the tray back into the tray in an inverted orientation when occasions arise for the inversion. One or more occasions may arise and be initiated automatically depending upon a selected mode of duplication or when an odd number of passes of a document set of sheets are necessary to complete a reproduction run. Other occasions may be operator selected for various reasons such as when pre-printed or pre-punched copy sheets are being processed.

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 August 27, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 27, 2002.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 22, 1982
GrantedAugust 27, 1985
Term endedAugust 27, 2002
Patent numberCA 1192581 A
Classification (IPC)B65H9/10 +1 more

Timeline

Timeline From CIPO dates

1983198519871989199119931995199719992001Application filedSep 22, 1982Patent grantedAug 27, 1985Term endedAug 27, 2002

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.