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Expired Canadian patentCanada

Radio transmitter time out timer

CA 1110705 A · Owner: Motorola, Inc. · Inventors: Freeburg, Thomas A.; Dolikian, Arman V.

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

Abstract of the Disclosure, A mobile data terminal system is capable of voice or microprocessor controlled data transmission over a keyed transmitter. The improved timer apparatus disables further transmission if the transmission duration or the average duty cycle over a, period of repeated, transmitter keying exceed predetermined limits. Where the disable mode resulted from a microprocessor fault, the tansmitter continues to be disabled until the microprocessor is reset.

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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 October 13, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 13, 1998.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJanuary 30, 1979
GrantedOctober 13, 1981
Term endedOctober 13, 1998
Patent numberCA 1110705 A
Classification (IPC)H04B7/24 +1 more

Timeline

Timeline From CIPO dates

1980198219841986198819901992199419961998Application filedJan 30, 1979Patent grantedOct 13, 1981Term endedOct 13, 1998

Sources & verification

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