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Canadian application, no grantCanada

A method for packet switched data transmission

CA 2289926 A1 · Owner: Hippelainen, Leo · Inventors: Hippelainen, Leo

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

The invention relates to packet-switched transmission of calls and particularly to packet-switched transmission of calls on circuits between a telecommunication network and base stations from the base stations toward the network. To reduce the maximum delays and the variation in the transmission times of call packets, control packets that contain signalling information on the data transmission network are separated from the call packets in the network node in the present method, information on the arrival rate of the call packets is maintained, the duration of the control packet that is to be sent next is calculated (22), the interval to the reception of the next call packet is …

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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 May 12, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 12, 2018.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 12, 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.
FiledMay 12, 1998
GrantedNo grant recorded
Term endedMay 12, 2018
Patent numberCA 2289926 A1
Classification (IPC)H04L12/64 +1 more

Timeline

Timeline From CIPO dates

1999200120032005200720092011201320152017Application filedMay 12, 1998Term endedMay 12, 2018

Sources & verification

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