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Expired Canadian patentCanada

Method and apparatus for mitigating an orphan condition in a spread-spectrum communication system

CA 2241833 C · Owner: Google Technology Holdings Llc · Inventors: Hyziak, Janusz; Bruckert, Eugene J.

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Abstract From the Canadian patent

An orphan condition is mitigated in a spread-spectrum communication system by determining when a remote unit (113) is likely to become an orphan (315) and adjusting remote unit (113) operating parameters (360) to force additional base stations (101, 102) to be added to the remote unit's (113) active set. In particular, when it is determined that a remote unit (113) is likely to become an orphan, T_ADD and T_COMP are adjusted so that the remote unit (113) is forced to add additional base stations (101 102) to its active set. , Increasing the number of base stations (101 102) that a remote unit (113) is , communicating with greatly reduces the probability that the remote unit (113) …

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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 August 27, 1997 and granted June 4, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 27, 2017.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 27, 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.
FiledAugust 27, 1997
GrantedJune 4, 2002
Term endedAugust 27, 2017
Patent numberCA 2241833 C
Classification (IPC)H04J13/00 +1 more

Timeline

Timeline From CIPO dates

1998200020022004200620082010201220142016Application filedAug 27, 1997Patent grantedJune 4, 2002Term endedAug 27, 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.