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Expired Canadian patentCanada

Portable antenna

CA 1313708 C · Owner: Blaese, Herbert R. · Inventors: Blaese, Herbert R.

CIPO record

Overview

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 portable antenna is provided for mounting on a motor vehicle's side window and enabling easy and rapid mounting and removal. The portable antenna includes an outer RF transfer member, a current-fed radiator connected to the outer RF transfer member, an inner RF transfer member, a field-cancelling member operative to cancel the electromagnetic field in the plane of the field-cancelling member, and a pair of generally parallel wire members pivotally connecting the outer transfer member to the inner transfer member and bridging the inner and outer transfer members so as to overlie the side window when the antenna is mounted thereon.

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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 February 16, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 16, 2010.
  • 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 6, 1988
GrantedFebruary 16, 1993
Term endedFebruary 16, 2010
Patent numberCA 1313708 C
Classification (IPC)H01Q1/32 +2 more

Timeline

Timeline From CIPO dates

19891992199519982001200420072010Application filedDec 6, 1988Patent grantedFeb 16, 1993Term endedFeb 16, 2010

Sources & verification

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