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Expired Canadian patentCanada

Legacy device bridge for residential or non-residential networks

CA 2511975 C · Owner: Krzyzanowski, Paul · Inventors: Lin, Wayzen; Krzyzanowski, Paul

CIPO record

Overview

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

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Abstract From the Canadian patent

A legacy device bridge for use in a network such as a wired or wireless , residential network is provided. The legacy device bridge performs protocol conversion to enable a network-attached entity that uses a packet-based communication protocol to communicate with and control legacy devices such as , consumer electronics, that rely exclusively on infrared (IR) or serial communication protocols. The legacy device bridge also performs a virtualization function that allows legacy devices to be advertised to the network as devices that comply with a packet-based discovery and control protocol, and to be controlled as such. The legacy device bridge is also adapted to probe, deduce and …

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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 9, 2003 and granted June 12, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 9, 2023.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 9, 2025.
  • 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 9, 2003
GrantedJune 12, 2012
Term endedDecember 9, 2023
Patent numberCA 2511975 C
Classification (IPC)H04L12/66 +2 more

Timeline

Timeline From CIPO dates

2004200620082010201220142016201820202022Application filedDec 9, 2003Patent grantedJune 12, 2012Term endedDec 9, 2023

Sources & verification

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