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Expired Canadian patentCanada

Low pim coaxial diplexer interface

CA 2327977 C · Owner: Hughes Electronics Corporation · Inventors: Reynolds, Robert L.; Kich, Rolf; Hendrick, Louis W.

CIPO record

Overview

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

A common interface (10) for a PIM sensitive diplexing filter (30) is provided in a non- contacting or isolated, configuration while providing PIM reliability ESD conduction and thermal conduction, making it ideal for high power space applications. The common interface (10) is a one- piece construction of a diplexed or multiplexed, coaxial, or squareax, transmission line that is constructed with a direct non-contacting (34 36), or connectionless, interface. Terminations (26 28) connect the inner conductor (20) to the outer conductor (12) of the interface (10) making the device one integral piece yet providing the necessary isolation through non-contacting interface with a PIM sensitive …

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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 December 8, 2000 and granted November 11, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 8, 2020.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 8, 2022.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledDecember 8, 2000
GrantedNovember 11, 2003
Term endedDecember 8, 2020
Patent numberCA 2327977 C
Classification (IPC)H01P5/08 +1 more

Timeline

Timeline From CIPO dates

2001200320052007200920112013201520172019Application filedDec 8, 2000Patent grantedNov 11, 2003Term endedDec 8, 2020

Sources & verification

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