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Expired Canadian patentCanada

Methods and apparatus for accelerating osi layer 3 routers

CA 2249787 C · Owner: Gullicksen, Jeffrey T. · Inventors: Edholm, Philip; Bernstein, Gregory M.; Gullicksen, Jeffrey T.

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Abstract From the Canadian patent

Methods and apparatus for accelerating a router in a communications network are described. In one embodiment, a router accelerator includes a forwarding table for, associatively storing a destination address and a next hop address. If a destination, address of a packet matches a destination address in the forwarding table then logic, forwards the packet to a next hop. A router may be coupled to at least one network port, through the router accelerator. In another approach the network includes at , least one, host and at least one router. The host has at least one routing table for associatively, storing a second-level destination address a second-level next hop address , and a …

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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 6, 1998 and granted December 30, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 6, 2018.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 6, 2020.
  • 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 6, 1998
GrantedDecember 30, 2003
Term endedOctober 6, 2018
Patent numberCA 2249787 C
Classification (IPC)H04L12/46 +1 more

Timeline

Timeline From CIPO dates

1999200120032005200720092011201320152017Application filedOct 6, 1998Patent grantedDec 30, 2003Term endedOct 6, 2018

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