Communication scheme using check packets for guaranteeing data packet order in communication media exchange during communication
CA 2274393 C · Owner: Terao, Kazuyuki · Inventors: Ono, Satoshi; Terao, Kazuyuki; Miyakawa, Shin
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A communication scheme capable of guaranteeing the order of packets in the communication media exchange during the communication so as to be able to continue the communication smoothly even after the communication media exchange is disclosed. The source host transmits a first check packet through the first communication path and stops transmission of user data packets upon transmitting the first check packet, while the destination host transmits the first check packet through the second communication path upon receiving the first check packet through the first communication path while transmitting a second check packet through the first communication path and stops, transmission of user …
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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 June 11, 1999 and granted August 5, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 11, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 11, 2021.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
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.