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Canadian application, no grantCanada

Method and apparatus for enabling flow control over multiple networks having disparate flow control capability

CA 2253853 A1 · Owner: Fujitsu Limited · Inventors: Hunt, Douglas H.; Malis, Andrew G.; Nair, Raj Krishnan

CIPO record

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

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Abstract From the Canadian patent

Method and apparatus for extending lower-layer flow control end-to-end transparent to network host systems (A B, C, D), between network hosts (A, B, C D) attached to legacy networks without requiring any changes to the host networks or hosts themselves. a source host (c) and a destination host (D) each residing on a respective LAN, communicate via an intermediate network supporting the lower-level flow control. A higher-layer end-to-end flow , control protocol existing between the hosts (C D). The lower-layer flow , control protocol accounts for loss of bandwidth between each hop within the intermediate network. No modifications to the legacy network or hosts is required, and the …

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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 May 9, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 9, 2017.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 9, 2019.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 9, 1997
GrantedNo grant recorded
Term endedMay 9, 2017
Patent numberCA 2253853 A1
Classification (IPC)H04L12/66 +2 more

Timeline

Timeline From CIPO dates

1998200020022004200620082010201220142016Application filedMay 9, 1997Term endedMay 9, 2017

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