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Expired Canadian patentCanada

Inverted super regenerative receiver

CA 2289345 C · Owner: Cloutier, Mark · Inventors: Cloutier, Mark

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

An amplifier for high gain, narrowband signal amplification is disclosed. An embodiment is an amplifier including a first means capable of oscillating and a second, means for controlling the operating state of the first means between oscillation and close, to oscillation. By operating close to oscillator high gain narrowband signal , amplification, occurs. By operating between oscillation and close to oscillation rather than , between, startup and close to oscillation the amplifier is always narrowband. , Accordingly an, advantage of the invention is operation with minimum affect from interfering

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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 9, 1999 and granted October 29, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 9, 2019.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 9, 2021.
  • 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 9, 1999
GrantedOctober 29, 2002
Term endedNovember 9, 2019
Patent numberCA 2289345 C
Classification (IPC)H03F3/66 +2 more

Timeline

Timeline From CIPO dates

2000200220042006200820102012201420162018Application filedNov 9, 1999Patent grantedOct 29, 2002Term endedNov 9, 2019

Sources & verification

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