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Expired Canadian patentCanada

Multibin shingling type stack feeder

CA 1079762 A · Owner: International Business Machines Corporation · Inventors: Kollar, Ernest P.; Mares, Fred R.; Fallon, John L.

CIPO record

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Abstract From the Canadian patent

A multibin cut-sheet xerographic copier capable of operating in a simplex or a duplex copy mode, wherein sheets are fed from a selected sheet stack, one at a time, to the copier's transfer station by a sheet feeding, means which includes a coming wheel. The combing wheel shingles the leading edge of the stack's top sheet to an open feed roller nip to be, sensed thereat by a pneumatic sensor. Sensing of this leading edge causes the combing wheel to be lifted off the stack. Subsequently at a time de-, termined by the copier's control logic the drive nip closes to thereby feed, the top sheet to the copier's paper registration gate and then to its, transfer station. As soon as this sheet's …

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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 June 17, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 17, 1997.
  • 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—
GrantedJune 17, 1980
Term endedJune 17, 1997
Patent numberCA 1079762 A
Classification (IPC)B65H3/06 +2 more

Timeline

Timeline From CIPO dates

198119831985198719891991199319951997Patent grantedJune 17, 1980Term endedJune 17, 1997

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