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Expired Canadian patentCanada

Broadband leaky wave antenna

CA 2574545 C · Owner: Gerini, Giampiero · Inventors: Gerini, Giampiero; Neto, Andrea; Bruni, Simona

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

An antenna comprises a conically shaped body of dielectric material. Crosssections of the body have truncated elliptical shape wherein each shape is , truncated substantially through a first focus of the elliptical shape along a truncation line that extends substantially perpendicularly to a main axis of the elliptical shape. The second focus of the elliptical shape lies within the body. An elongated wave carrying structure such as a slot in a conductive ground plane extends substantially along a focal line through the first focus of the elliptical shapes in successive cross-sections. This structure supports transmission and/or reception over a wide range of frequencies. In an …

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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 July 15, 2005 and granted April 8, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 15, 2025.
  • 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.
FiledJuly 15, 2005
GrantedApril 8, 2014
Term endedJuly 15, 2025
Patent numberCA 2574545 C
Classification (IPC)H01Q13/28

Timeline

Timeline From CIPO dates

2006200820102012201420162018202020222024Application filedJuly 15, 2005Patent grantedApril 8, 2014Term endedJuly 15, 2025

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