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Expired Canadian patentCanada

Communication channel ownership arrangement

CA 1331398 C · Owner: Ardon, Menachem Tsur · Inventors: Sassano, John Pasquale; Ardon, Menachem Tsur

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

Abstract, A communication channel ownership arrangement where two call units (switching modules) each own certain ones of the bidirectional channels between the units. By virtue of ownership a call unit can immediately assign, owned channels to calls without consulting the other call unit. While the ownership of channels to calls may be arbitrary at system initialization ownership, is modifiable on a per-call basis to dynamically adapt to the actual directionaltraffic patterns that are present at a given time to minimize the coordination and communication required between the call units.

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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

  • Granted August 9, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 9, 2011.
  • 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 24, 1988
GrantedAugust 9, 1994
Term endedAugust 9, 2011
Patent numberCA 1331398 C
Classification (IPC)H04Q11/04 +1 more

Timeline

Timeline From CIPO dates

19891992199519982001200420072010Application filedOct 24, 1988Patent grantedAug 9, 1994Term endedAug 9, 2011

Sources & verification

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