Disabling header compression over point-to-point protocol (ppp)
CA 2354722 C · Owner: Certicom Corp. · Inventors: Poeluev, Yuri; Mercer, Ronald G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method and system for manipulating packet header compression parameters by substituting at least one instruction set associated with a PPP negotiation packet at the PPP layer of a protocol stack the at least one instruction set for use in establishing a communication protocol and channel between a pair of correspondents. The method includes the steps of a software module coupled to a first correspondent examining all PPP negotiation packets from a second correspondent; the software module determining whether a first instruction set is present in the PPP negotiation packet; the software module discarding said first instruction set and replacing the first instruction set with a second …
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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 August 1, 2001 and granted November 24, 2015. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 1, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 1, 2023.
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Timeline
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Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.