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Expired Canadian patentCanada

Remote controller and method for assigning to signals priority based on type and manufacturer of equipment

CA 2097411 C · Owner: Takiguchi, Iwao · Inventors: Takiguchi, Iwao; Takahashi, Toshiyuki

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

Remote control signals for a plurality of manufacturers and a plurality of electronic equipment are stored in a memory, the remote control signals are divided into groups each of the groups is allotted to each of operating keys on a body of a remote controller and various remote control signals which may exist within the group are allocated to a number of times which the its operating keys are pressed. The groups and any remote control signals existing within the group are stored in order of priority.

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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 31, 1993 and granted April 22, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 31, 2013.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 31, 2015.
  • 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 31, 1993
GrantedApril 22, 2003
Term endedMay 31, 2013
Patent numberCA 2097411 C
Classification (IPC)G08C23/00 +2 more

Timeline

Timeline From CIPO dates

1994199619982000200220042006200820102012Application filedMay 31, 1993Patent grantedApril 22, 2003Term endedMay 31, 2013

Sources & verification

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