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Expired Canadian patentCanada

Moving target ordnance control

CA 1212167 A · Owner: Grumman Aerospace Corporation · Inventors: Boles, Sol; Smrek, Walter J.

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 airborne radar system, moving ground targets are identified on a cathode ray tube (CRT) display and their motion tracked to allow precise delivery of air-to-ground weapons. Target location errors due to the effect of target motion upon the doppler frequency of the received radar signals are sig-, nificantly reduced. The target's radial velocity with respect to the electrical boresight of the system antenna is determined and a corresponding frequency adjustment is made to the processed signal in order to accurately locate the target on the display to lie in precise correspondence to its displayed stationary surroundings. The measurement of target radial velocity also provides a precise …

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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.

Why it's free to use

  • Granted September 30, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 30, 2003.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 29, 1983
GrantedSeptember 30, 1986
Term endedSeptember 30, 2003
Patent numberCA 1212167 A
Classification (IPC)G01S13/90 +2 more

Timeline

Timeline From CIPO dates

1984198619881990199219941996199820002002Application filedApril 29, 1983Patent grantedSep 30, 1986Term endedSep 30, 2003

Sources & verification

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