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Expired Canadian patentCanada

Cartridge for a typewriter ribbon

CA 1324102 C · Owner: Ing. C. Olivetti & C. Spa · Inventors: Uggetti, Sergio; Falconieri, Remo

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 cartridge for a typewriter typing ribbon comprises a container for accommodating the typing ribbon which can be of correctable or non-correctable type. A corrector cartridge can be removably fixed on the lower part of the container by engagement means. The corrector cartridge accommodates a correction ribbon which can be of the lift-off type suitable for the typing ribbon of correctable type, or of the cover-up correction type which is suitable for the typing ribbon of non-correctable type. Coupling means on the cartridge and the corrector cartridge permit the engagement means removably to fix the corrector cartridge to the container only when the cartridge houses the typing ribbon of …

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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 9, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 9, 2010.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledFebruary 15, 1989
GrantedNovember 9, 1993
Term endedNovember 9, 2010
Patent numberCA 1324102 C
Classification (IPC)B41J35/28 +2 more

Timeline

Timeline From CIPO dates

1990199319961999200220052008Application filedFeb 15, 1989Patent grantedNov 9, 1993Term endedNov 9, 2010

Sources & verification

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