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Expired Canadian patentCanada

Television on channel selecting apparatus

CA 1312945 C · Owner: Amano, Toshio · Inventors: Oda, Osamu; Amano, Toshio

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 television on channel selecting apparatus arranged such that when two antenna inputs are switched the, switching operation for the second antenna input is included in the switching operation for the first antenna input thus, the channel-selection being carried out by a more simplified key operation.

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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 January 19, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 19, 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.
FiledMay 27, 1988
GrantedJanuary 19, 1993
Term endedJanuary 19, 2010
Patent numberCA 1312945 C
Classification (IPC)H03J5/00 +2 more

Timeline

Timeline From CIPO dates

19891992199519982001200420072010Application filedMay 27, 1988Patent grantedJan 19, 1993Term endedJan 19, 2010

Sources & verification

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