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Expired Canadian patentCanada

Store and forward type of text processing unit

CA 1111923 A · Owner: International Business Machines Corporation · Inventors: Kuseski, Roger E.

CIPO record

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

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Abstract From the Canadian patent

Abstract, A store and forward unit having an output print station with convenience copying capabilities has connections to diverse text signal sources and destinations. Such diverse sources and destinations may have established textual format and control characters not necessarily shared with other sources and destinations. The store and forward unit, upon receiving a set of text signals examines the, text control characters. Based upon such examination the, store and forward unit processes such text without changing the control characters provided that all destinations connected to such unit can use such control characters. If on the other hand, the destinations cannot use such control …

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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 November 3, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 3, 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.
FiledAugust 31, 1977
GrantedNovember 3, 1981
Term endedNovember 3, 1998
Patent numberCA 1111923 A
Classification (IPC)G06F3/00 +2 more

Timeline

Timeline From CIPO dates

1978198119841987199019931996Application filedAug 31, 1977Patent grantedNov 3, 1981Term endedNov 3, 1998

Sources & verification

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