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Expired Canadian patentCanada

Electronic register

CA 2064257 C · Owner: Matsushita Electric Industrial Co. Ltd. · Inventors: Fuyama, Seiji

CIPO record

Overview

Drawings and full text

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

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Abstract From the Canadian patent

The present invention has an object of providing an electronic register with macro key function which can achieve various functions corresponding to seven kinds of code including a mode check function in addition to a limited function of collectively performing a plurality of key processings existing on the keyboard. Seven kinds of code, including the mode check code for checking the operation of the register in addition to the key code on the keyboard are set as, macro key set data, to the memory corresponding to the macro key on the keyboard. When any one of the seven kinds of code exists in the macro key set data which has been set corresponding to the macro key processing of, the …

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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 March 27, 1992 and granted October 21, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 27, 2012.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 27, 2014.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 27, 1992
GrantedOctober 21, 1997
Term endedMarch 27, 2012
Patent numberCA 2064257 C
Classification (IPC)G07G1/12 +1 more

Timeline

Timeline From CIPO dates

1993199519971999200120032005200720092011Application filedMarch 27, 1992Patent grantedOct 21, 1997Term endedMarch 27, 2012

Sources & verification

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