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Expired Canadian patentCanada

Coaxial-to-microstrip transition connector

CA 1083682 A · Owner: Licentia Patent-Verwaltungs-Gmbh · Inventors: Dorntlein, Peter; Czech, Johannes

CIPO record

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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 transition device for connecting a coaxial cable to an integrated microwave circuit (MIC) composed of planar lines disposed on a substrate the, device being composed of a coaxial connector having a protruding inner conductor cable, a tuning screw disposed to form a variable capacitor with the protruding conductor of the coaxial connector and arranged to be adjusted to control the electrical parameters of the device, an intermediate dielectric carrier carrying a planar intermediate line connected to the inner conductor of the connector, the intermediate carrier forming a fixed unit with the coaxial connector and being disposed between the connector and the (MIC) substrate a housing, …

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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

  • Granted August 12, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 12, 1997.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJanuary 4, 1978
GrantedAugust 12, 1980
Term endedAugust 12, 1997
Patent numberCA 1083682 A
Classification (IPC)H01P5/04

Timeline

Timeline From CIPO dates

1979198119831985198719891991199319951997Application filedJan 4, 1978Patent grantedAug 12, 1980Term endedAug 12, 1997

Sources & verification

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