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Expired Canadian patentCanada

Integrated telecommunication system architecture for wireless and wireline access featuring pacs radio technology

CA 2252473 C · Owner: Telcordia Licensing Company Llc · Inventors: Greaney, Shaun J.; Leland, Kenneth W.

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

Disclosed is a telecommunication system (52-82) that is both highly cost effective for small scale applications (for example those having less than 80 , lines), yet field upgrade-expandable via a backplane bus (68) to applications having a significant number of additional lines (for example 30,000 lines). , An integrated voice/data telecommunication system is utilized that is flexible enough to handle low bandwidth (for example 64 kbps mu-law) speech as well as high bandwidth multimedia data switching. The system may be configured as a low cost, standalone PACS system for "village telephony" or "PACS-on-POTS" applications, as an alternative to requirements for PACS infrastructure when …

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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 June 18, 1996 and granted April 9, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 18, 2016.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 18, 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.
FiledJune 18, 1996
GrantedApril 9, 2002
Term endedJune 18, 2016
Patent numberCA 2252473 C
Classification (IPC)H04Q3/42 +2 more

Timeline

Timeline From CIPO dates

1997199920012003200520072009201120132015Application filedJune 18, 1996Patent grantedApril 9, 2002Term endedJune 18, 2016

Sources & verification

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