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Expired Canadian patentCanada

Interlaced linear array sampling technique for electromagnetic wave imaging

CA 2623401 C · Owner: Mcmakin, Douglas L. · Inventors: Mcmakin, Douglas L.; Sheen, David M.

CIPO record

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Abstract From the Canadian patent

An arrangement of receivers and transmitters used in wideband holographic imaging using a reduced number of physical antenna elements compared to established techniques and systems. At least one of the receivers is configured to receive the reflected signal from three or more of transmitters and at least one transmitter is configured to transmit a signal to an object the reflection of which will be received by at least three receivers. The improved arrays are easily incorporated into existing microwave and millimeter wave holographic imaging equipment utilizing the existing mechanical features of this equipment, as well as the existing wideband holographic imaging algorithms and …

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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 September 22, 2006 and granted April 8, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 22, 2026.
  • Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 22, 2006
GrantedApril 8, 2014
Term endedSeptember 22, 2026
Patent numberCA 2623401 C
Classification (IPC)G01S13/89 +1 more

Timeline

Timeline From CIPO dates

2007200920112013201520172019202120232025Application filedSep 22, 2006Patent grantedApril 8, 2014Term endedSep 22, 2026

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