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Expired Canadian patentCanada

Mobile communications terminal for satellite communications system

CA 2239985 C · Owner: Self, Dean A. · Inventors: Gruessing, Joseph A. Jr.; Duske, Frederick J. Jr.; Self, Dean A.

CIPO record

Overview

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

A mobile communications system (10) transporting messages between mobile terminals (18) and a central center (12) using a satellite communications system. The central control center (12) and the mobile terminals (18) each store a plurality of message display forms each having a form identifier and a predetermined display format. The message display forms are selected as templates for generating user messages including message data supplied at the originating station. The satellite (16) messages transmit the user message by transmitting the message data and the form identifier of the corresponding selected message display form. The receiver station upon receiving the , satellite …

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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

  • Filed December 6, 1996 and granted May 14, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 6, 2016.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 6, 2018.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledDecember 6, 1996
GrantedMay 14, 2002
Term endedDecember 6, 2016
Patent numberCA 2239985 C
Classification (IPC)H04B7/18 +1 more

Timeline

Timeline From CIPO dates

1997199920012003200520072009201120132015Application filedDec 6, 1996Patent grantedMay 14, 2002Term endedDec 6, 2016

Sources & verification

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