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Expired Canadian patentCanada

A method for carrying frame relay over ethernet

CA 2634159 C · Owner: Zhai, Suping · Inventors: Zhai, Suping

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

A method for carrying Frame Relay over Ethernet comprises: receiving a Frame Relay frame, and removing header and tail flag sequences from the Frame Relay frame; , determining a control word and performing payload encapsulation; mapping a DLCI to a , VCE ID and encapsulating the VCE ID; encapsulating an Ethernet frame header generating , an Ethernet FCS and transmitting the Ethernet frame to Ethernet; and receiving the Ethernet , frame, checking the Ethernet frame and removing the Ethernet frame header; removing the , VCE ID, and mapping the VCE ID to the DLCI; obtaining the control word obtaining Frame , Relay information from the payload and reconstructing the Frame Relay frame …

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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 September 4, 2006 and granted June 7, 2016. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 4, 2026.
  • Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 4, 2006
GrantedJune 7, 2016
Term endedSeptember 4, 2026
Patent numberCA 2634159 C
Classification (IPC)H04L12/46

Timeline

Timeline From CIPO dates

2007200920112013201520172019202120232025Application filedSep 4, 2006Patent grantedJune 7, 2016Term endedSep 4, 2026

Sources & verification

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