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Expired Canadian patentCanada

Bimos integrated circuit

CA 2173034 C · Owner: Nec Corporation · Inventors: Okamura, Hitoshi

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

Disclosed is a BiMOS integrated circuit which has: a, bipolar transistor for output pull-up; a BiMOS hybrid gate buffer section which comprises a MOS transistor for output pull-down which is longitudinally connected to the bipolar transistor and, a MOS transistor for base drive which comprises an output which is connected a base of the bipolar transistor to drive the base and a gate which is connected to an input; and a logical section which comprises at least a CMOS gate, the logical section having an output which is connected to the input; wherein the base drive MOS transistor has an input capacitance less than that of the output pull-down MOS transistor.

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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 29, 1996 and granted May 29, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 29, 2016.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 29, 2018.
  • 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 29, 1996
GrantedMay 29, 2001
Term endedMarch 29, 2016
Patent numberCA 2173034 C
Classification (IPC)H03K19/01 +1 more

Timeline

Timeline From CIPO dates

1997199920012003200520072009201120132015Application filedMarch 29, 1996Patent grantedMay 29, 2001Term endedMarch 29, 2016

Sources & verification

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