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Expired Canadian patentCanada

Local access network signal regenerator

CA 1325046 C · Owner: Webber, Harold H. Jr. · Inventors: Webber, Harold H. Jr.

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 multiple port signal regenerator for facilitating communication between a plurality (two or more) computers and computer peripheral devices ("computer products") in a local access network. The regenerator includes logic circuits that: (1) receives, processes and transmits an incoming message from a source computer product and ignores subsequently received incoming messages from other computer products until the firstreceived message is processed; (2) suppresses or ignores for a, predetermined punishment time interval subsequent messages, received from a source computer product if temporal length of, a message received from the source exceeds a predetermined protocol time interval; and (3) …

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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

  • Granted December 7, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 7, 2010.
  • 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 11, 1989
GrantedDecember 7, 1993
Term endedDecember 7, 2010
Patent numberCA 1325046 C
Classification (IPC)H04L25/20 +2 more

Timeline

Timeline From CIPO dates

1990199319961999200220052008Application filedMay 11, 1989Patent grantedDec 7, 1993Term endedDec 7, 2010

Sources & verification

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