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Expired Canadian patentCanada

Data flow control with duplicate acknowledgment

CA 2591601 C · Owner: Telefonaktiebolaget Lm Ericsson (Publ) · Inventors: Ludwig, Reiner; Ekstroem, Hannes

CIPO record

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Abstract From the Canadian patent

A method of controlling the flow of an amount of data from a sending peer to a receiving peer of a predetermined communication protocol is described. The method comprise dividing the amount of data into a plurality of data segments where the data segments are ordered in a sequence. The segments are sent to the receiving peer in the order of said sequence. The receiving peer acknowledges the correct receipt of a data segment and identifies the last correctly received data segment of the sequence that was received in the proper order of the sequence. The sending peer is arranged such that if it receives a threshold number of duplicate acknowledgements it performs a , retransmission. …

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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 December 22, 2004 and granted June 3, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 22, 2024.
  • 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.
FiledDecember 22, 2004
GrantedJune 3, 2014
Term endedDecember 22, 2024
Patent numberCA 2591601 C
Classification (IPC)—

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedDec 22, 2004Patent grantedJune 3, 2014Term endedDec 22, 2024

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