Call restricting method in packet switching network and network controller having call restricting function
CA 2008352 C · Owner: Osaki, Yoshiro · Inventors: Osaki, Yoshiro
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A call restricting method for a packet switching network, by which acception of a call issued from a call origination terminal is restricted to thereby previously prevent the occurrence of a congestion in the packet switching network, in which the call origination terminal informs an associated packet switching node connected to terminal of traffic parameters indicative of an application atate of trunk lines to be connected between the call origination terminal and a destination terminal and the packet switching node, when informed of these traffic parameters and the calling data decides one of, the trunk lines to be used according to the calling data and estimates a line quality of the …
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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 January 23, 1990 and granted December 14, 1993. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 23, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 23, 2012.
- 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
Timeline From CIPO dates
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.