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Expired Canadian patentCanada

System and method for distributing voice and data information over wireless and wireline networks

CA 2309716 C · Owner: Ameritech Corporation · Inventors: Gorman, Michael G.

CIPO record

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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 method and device for distributing both high-speed data service such as , digital computer, video and multimedia data and lower speed data service, such as POTS voice telephone signals throughout a customer premises. High-, speed digital data and lower speed POTS voice signals are separated by a POTS splitter and distributed throughout the customer premises on separate distribution networks. The lower speed POTS is carried on a wireless distribution network and the high-speed data carried on the existing customer premises wiring ordinarily used for POTS.

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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 October 28, 1998 and granted December 23, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 28, 2018.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 28, 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.
FiledOctober 28, 1998
GrantedDecember 23, 2003
Term endedOctober 28, 2018
Patent numberCA 2309716 C
Classification (IPC)H04L12/28 +2 more

Timeline

Timeline From CIPO dates

1999200120032005200720092011201320152017Application filedOct 28, 1998Patent grantedDec 23, 2003Term endedOct 28, 2018

Sources & verification

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