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Expired Canadian patentCanada

Digital alarm and subsidiary time electronic timepiece

CA 1079986 A · Owner: Kabushiki Kaisha Daini Seikosha · Inventors: Fukuichi, Takuro

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

An electronic timpiece which has a main time keeping circuit an, alarm, a counter for providing an alarm time set function and a subsidiary, time function for providing a display of time different from the main time for which the timepiece is set. The counter can be actuated between an upcount and a down-count mode, the alarm time setting being introduced into the counter when in its up-count mode, and providing the alarm operating function when the counter is set to its down-count mode. The counter provides the subsidiary time information by being held in its up-count mode and being driven from the main time keeping circuit with which connection is broken, when subsidiary time is being set …

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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 June 24, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 24, 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.
Filed—
GrantedJune 24, 1980
Term endedJune 24, 1997
Patent numberCA 1079986 A
Classification (IPC)G04C23/02 +2 more

Timeline

Timeline From CIPO dates

198119831985198719891991199319951997Patent grantedJune 24, 1980Term endedJune 24, 1997

Sources & verification

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