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Canadian application, no grantCanada

Japanese emulator

CA 2056237 A1 · Owner: Kabushiki Kaisha Toshiba · Inventors: Kato, Hiroshi; Kasuya, Hideo; Wada, Masamichi

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 comprises a first-language basic input/output control program linked with a firstlanguage OS and a computer and an input/output device for executing first-language application software of an object form, an emulator linked with second-language application software, the first-language basic input/ output control program and the first-language OS for executing the second-language application software of the object form and means for activating or ceasing the emulator. Thereby, there is provided a computer system which permits the first-language application software and the second-language application software to be operated using identical computer, input/output device …

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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 November 26, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 26, 2011.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 26, 2013.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 26, 1991
GrantedNo grant recorded
Term endedNovember 26, 2011
Patent numberCA 2056237 A1
Classification (IPC)G06F7/00 +1 more

Timeline

Timeline From CIPO dates

1992199419961998200020022004200620082010Application filedNov 26, 1991Term endedNov 26, 2011

Sources & verification

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