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Expired Canadian patentCanada

Establishing additional reverse link carriers in multi-carrier wireless system

CA 2620413 C · Owner: Lg Electronics Inc. · Inventors: Sun, Li-Hsiang; Lee, Suk Woo; Yoon, Young Cheul

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 method and apparatus for reliably and quickly establishing multiple reverse links in multi-carrier wireless networks is provided. Signaling channels are established the on an existing forward link in order to transmit reverse link power control bits and the acknowledgment indications.

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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 September 21, 2006 and granted April 16, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 21, 2026.
  • Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
  • 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 21, 2006
GrantedApril 16, 2013
Term endedSeptember 21, 2026
Patent numberCA 2620413 C
Classification (IPC)H04B7/00 +1 more

Timeline

Timeline From CIPO dates

2007200920112013201520172019202120232025Application filedSep 21, 2006Patent grantedApril 16, 2013Term endedSep 21, 2026

Sources & verification

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