Electronic timepiece with recurrent and single alarm
CA 1072749 A · Owner: Kabushiki Kaisha Daini Seikosha · Inventors: Kondo, Kenichi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An electronic alarm timepiece particularly suitable as a watch which includes an oscillator and time counting circuitry and which also includes a recurrent alarm memory and a single alarm memory with a coincidence circuit switchable alternately to compare the setting in the recurrent alarm memory with the time counting circuit output and the setting of the single alarm memory with the time counting circuit output. When coincidence of one of these memories with the time counting circuit is detected the output coinci-, dence signal actuates an alarm drive. The coincidence signal is also able to actuate circuitry for reset of the single alarm memory if the coincidence signal has been produced …
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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 March 4, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 4, 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.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.