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Expired Canadian patentCanada

Aircraft radar system

CA 1316240 C · Owner: Telefunken Systemtechnik Gmbh · Inventors: Drescher, Roland; Jehle, Franz

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

In an aircraft radar system with a search radar and a radar-warning receiver system there is an additional receiver branch, to which hostile radar signals picked up by the sharply focussed transmit-receive antenna are passed and the output of, which is connected to the radar-warning receiver. This results in a high level of angular resolution and a considerable increase in range, and this in turn leads to the detailed and timely identification of threat situations. The use of already available components and the simple construction of the additional receiver branch means that the associated costs have been kept to a minimum.

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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 April 13, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 13, 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.
FiledMay 19, 1988
GrantedApril 13, 1993
Term endedApril 13, 2010
Patent numberCA 1316240 C
Classification (IPC)G01S13/86 +1 more

Timeline

Timeline From CIPO dates

19891992199519982001200420072010Application filedMay 19, 1988Patent grantedApril 13, 1993Term endedApril 13, 2010

Sources & verification

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