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Expired Canadian patentCanada

Mobile communication scheme for efficiently regulating service through micro-cell system in coordination with service through macro-cell system

CA 2217628 C · Owner: Yoshimi, Masaaki · Inventors: Nagata, Kiyohito; Yoshimi, Masaaki; Wakabayashi, Tatsuaki

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Abstract From the Canadian patent

A mobile communication scheme capable of notifying a communication regulation information efficiently by using radio interfaces from the macro-cell system to the micro-cell system, without requiring communications through a fixed communication network, so as to be able to regulate the service through the micro-cell system efficiently in coordination with the regulation of the service through the macro-cell system. In this mobile communication scheme the, communication regulation information is notified from the macro-cell system to the mobile station while the mobile station is located within the macro-cell system and stored, in a memory of the mobile station. Then the communication, …

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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 October 2, 1997 and granted December 12, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 2, 2017.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 2, 2019.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 2, 1997
GrantedDecember 12, 2000
Term endedOctober 2, 2017
Patent numberCA 2217628 C
Classification (IPC)H04W36/04 +1 more

Timeline

Timeline From CIPO dates

1998200020022004200620082010201220142016Application filedOct 2, 1997Patent grantedDec 12, 2000Term endedOct 2, 2017

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