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Expired Canadian patentCanada

Multifunctional pager receiver capable of reducing the number of manual switches

CA 1248184 A · Owner: Nec Corporation · Inventors: Ohyagi, Takashi; Oda, Takashi; Mori, Toshihiro

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Abstract From the Canadian patent

In a multifunctional pager receiver comprising a processing circuit (30) operable in a plurality of modes of operations, each mode is selected by manual switches (51, 62-64) smaller in number than the modes. A combination of successive manual operations of the switches changes the modes from an intermediate one to a final one. At least one of the switches is operated plural times. An operation announcement is stored in a message processor (32) included in the processing circuit and displayed in the intermediate mode on a display unit (71) so as to specify the following modes to be selected. A plurality of message signals are stored in a random access memory included in the message …

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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 3, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 3, 2006.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 28, 1984
GrantedJanuary 3, 1989
Term endedJanuary 3, 2006
Patent numberCA 1248184 A
Classification (IPC)H04B1/16 +2 more

Timeline

Timeline From CIPO dates

19851988199119941997200020032006Application filedSep 28, 1984Patent grantedJan 3, 1989Term endedJan 3, 2006

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