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Expired Canadian patentCanada

Diagonal supporting conductors for loop antennas

CA 2331347 C · Owner: Podger, James Stanley · Inventors: Podger, James Stanley

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

Supporting conductors for loop antennas that are positioned within the principal H plane of, the loop antennas and positioned diagonally with respect to the plane of the loops. Such diagonal, supporting conductors do not interfere with the electrical operation of the loop antennas, and they, can be stronger than the traditional long supporting insulators that are often broken by bad, weather. These conductors may also reduce the movement of the loop antennas in the wind and, may have less weight and cost than the combination of a supporting conductor placed directly, across the loop plus a supporting boom.

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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 January 12, 2001 and granted October 15, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 12, 2021.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 12, 2023.
  • 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 12, 2001
GrantedOctober 15, 2002
Term endedJanuary 12, 2021
Patent numberCA 2331347 C
Classification (IPC)H01Q1/12 +1 more

Timeline

Timeline From CIPO dates

2002200420062008201020122014201620182020Application filedJan 12, 2001Patent grantedOct 15, 2002Term endedJan 12, 2021

Sources & verification

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