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Expired Canadian patentCanada

Control apparatus for serial printer

CA 1086654 A · Owner: Xerox Corporation · Inventors: Chang, Louis H.; Ruble, Frank D.; Fravel, John C.

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 serial printer comprises a carriage, a print member rotatably mounted to the carriage and including a plurality of character elements, a first drive assembly coupled to the print member for rotating the print member to a desired rotational position in order to place a selected character element at a printing position adjacent a record medium to be printed upon, a second drive assembly coupled to the carriage for moving the carriage along a predetermined path whereby the print member is caused to move to a desired printing position along the path, a first servo control system coupled to the first drive assembly and responsive to a first set of input data and instructions for controlling …

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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 September 30, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 30, 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.
FiledApril 12, 1979
GrantedSeptember 30, 1980
Term endedSeptember 30, 1997
Patent numberCA 1086654 A
Classification (IPC)B41J1/46 +1 more

Timeline

Timeline From CIPO dates

198019821984198619881990199219941996Application filedApril 12, 1979Patent grantedSep 30, 1980Term endedSep 30, 1997

Sources & verification

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