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Expired Canadian patentCanada

Burst-error resistant atm microwave link and network

CA 2206677 C · Owner: Pasternak, Eliezer · Inventors: Ben-Efraim, Gideon; Pasternak, Eliezer

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 digital radio link suitable for transmitting digital voice or data signals includes an input circuit (61) for ATM or frame relay cells/frames attached to an ATM or Frame Relay network, a forward error correction encoder and decoder (67) with indication of uncorrectable blocks due to burst errors a payload , processing module (64) for modifying bits in the frames or cells so that frames/cells extracted from a forward error correction block containing bit errors will not be misinserted by the network.

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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 3, 1996 and granted February 12, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 3, 2016.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 3, 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.
FiledOctober 3, 1996
GrantedFebruary 12, 2002
Term endedOctober 3, 2016
Patent numberCA 2206677 C
Classification (IPC)H04L1/00 +2 more

Timeline

Timeline From CIPO dates

1997199920012003200520072009201120132015Application filedOct 3, 1996Patent grantedFeb 12, 2002Term endedOct 3, 2016

Sources & verification

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