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Canadian application, no grantCanada

Method and circuit arrangement for the acceptance and forwarding of message cells transmitted according to an assynchronous transfer mode by an asynchronous transfer mode switching equipment

CA 2048708 A1 · Owner: Danner, Gerd · Inventors: Danner, Gerd

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

For receiving and forwarding message cells transmitted according to an asynchronous transfer mode (ATM) by an ATM switching equipment which comprises a multi-stage reversing switching matrix network each of the message cells has a, routing information block having a plurality of routing information corresponding in number to the plurality of switching matrix stages to be traversed located in front thereof within the ATM switching equipment and the routing information just evaluated for the forwarding of a message cell through one of the switching matrix stages is subsequently displaced to the end of the respective routing information block. It is thereby provided that each of the routing …

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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 8, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 8, 2011.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 8, 2013.
  • 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 8, 1991
GrantedNo grant recorded
Term endedAugust 8, 2011
Patent numberCA 2048708 A1
Classification (IPC)H04Q3/42 +1 more

Timeline

Timeline From CIPO dates

1992199419961998200020022004200620082010Application filedAug 8, 1991Term endedAug 8, 2011

Sources & verification

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