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Canadian application, no grantCanada

Methods and systems preventing frame mis-ordering in explicitly routed networks

CA 2669508 A1 · Owner: Grabner, Steve Joseph · Inventors: Lee, Byoung-Joon; Grabner, Steve Joseph; Van Gulik, John Willem

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

Methods, systems and apparatus are provided which prevent frame mis-ordering in an explicitly routed network when switching from a first path to a second path. In a first embodiment last , frame and first frame markers are transmitted and a receiver , buffers all frames received between receipt of the last frame marker and the first frame marker. In a second embodiment a , last frame marker is sent to which an acknowledgement must be received before transmitting on the second path. In a third embodiment, only a first frame marker is sent. The receiver upon receipt, signals a network card for the first path to stop forwarding frames, also buffers frames for some period. In a fourth …

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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 January 30, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 30, 2023.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 30, 2025.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJanuary 30, 2003
GrantedNo grant recorded
Term endedJanuary 30, 2023
Patent numberCA 2669508 A1
Classification (IPC)H04L45/50 +1 more

Timeline

Timeline From CIPO dates

2004200620082010201220142016201820202022Application filedJan 30, 2003Term endedJan 30, 2023

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