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Expired Canadian patentCanada

Copy production machines

CA 1110691 A · Owner: International Business Machines Corporation · Inventors: Travis, Terence; Andrews, Donald R.; Kuseski, Roger E.

CIPO record

Overview

Drawings and full text

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

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Abstract From the Canadian patent

A copy production machine has a print mode for making copies under automatic control interruptible by a copy mode of making copies. In the print mode images to be copied are automatically supplied to a copy production portion. In the copy mode a variety of image supplying techniques may be employed. Copy output means separate copies made from the two modes. In the print mode images are preferably precollated while in the copy mode produced copies are collated. In a print mode plural image sources may be employed, such sources being activated in seriatim.

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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 October 13, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 13, 1998.
  • 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 19, 1977
GrantedOctober 13, 1981
Term endedOctober 13, 1998
Patent numberCA 1110691 A
Classification (IPC)G03G13/26 +1 more

Timeline

Timeline From CIPO dates

1978198119841987199019931996Application filedSep 19, 1977Patent grantedOct 13, 1981Term endedOct 13, 1998

Sources & verification

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