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Expired Canadian patentCanada

Aircraft precision approach control system

CA 1317008 C · Owner: Grumman Aerospace Corporation · Inventors: Martorella, Romeo P.

CIPO record

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

A precision approach control system designed to control the approach of an aircraft during landing to provide a more stable and easier mode of landing during critical landing situations, such as during the landing of an aircraft on an aircraft carrier. During operation when the aircraft, is subjected to vertical or horizontal winds or wind shear the system controls the aircraft to maintain the inertial flight path angle constant which essentially defines operation in the precision approach control mode. In one disclosed embodiment, the precision approach control system changes the controller in the cockpit that is normally the pitch rate command stick controller during a Power Assist …

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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 27, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 27, 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.
FiledAugust 8, 1988
GrantedApril 27, 1993
Term endedApril 27, 2010
Patent numberCA 1317008 C
Classification (IPC)B64D45/04 +2 more

Timeline

Timeline From CIPO dates

19891992199519982001200420072010Application filedAug 8, 1988Patent grantedApril 27, 1993Term endedApril 27, 2010

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