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Canadian application, no grantCanada

Method and apparatus for the use of micro-tunnels in a communications system

CA 2500343 A1 · Owner: Bender, Paul E. · Inventors: Leung, Nikolai K. N.; Rezaiifar, Ramin; Pankaj, Rajesh K.

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

Micro-tunnels are used to provide multiple data service sessions to the same mobile node in a wireless communications system. Further the flexibility of , the micro-tunnels optimizes the resources of the system. On request for a data service, an encapsulation configuration record is generated. An encapsulation header is created in response to the encapsulation configuration. The encapsulation header includes a packet service identifier and a micro-tunnel identifier.

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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 15, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 15, 2023.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 15, 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.
FiledOctober 15, 2003
GrantedNo grant recorded
Term endedOctober 15, 2023
Patent numberCA 2500343 A1
Classification (IPC)H04L47/10 +2 more

Timeline

Timeline From CIPO dates

2004200620082010201220142016201820202022Application filedOct 15, 2003Term endedOct 15, 2023

Sources & verification

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