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Canadian application, no grantCanada

Single input to differential output amplifier

CA 2000367 A1 · Owner: Ferrer, Enrique · Inventors: Ferrer, Enrique

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

A single input differential output amplifier (50) includes two Gallium Arsenide field effect transistors: one arranged to form a common gate amplifier (55) to provide a non-inverting output (60) and the other arranged to form a common source (65) amplifier to provide an inverting output (61). The input of each FET is connected to receive an input signal simultaneously thereby minimizing phase delay in the differential output signals. In another aspect of the invention, the non-inverting stage (55) is incorporated into the biasing network for the inverting amplifier (65).

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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 October 10, 1989. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 10, 2009.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 10, 2011.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 10, 1989
GrantedNo grant recorded
Term endedOctober 10, 2009
Patent numberCA 2000367 A1
Classification (IPC)H03F3/45 +1 more

Timeline

Timeline From CIPO dates

1990199219941996199820002002200420062008Application filedOct 10, 1989Term endedOct 10, 2009

Sources & verification

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