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Expired Canadian patentCanada

Warning system for tactical aircraft

CA 1256564 A · Owner: Sundstrand Data Control, Inc. · Inventors: Vermilion, Everette E.; Paterson, Noel S.

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

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Abstract From the Canadian patent

Abstract o the Disclosure A system for warning the pilot of a, tactical aircraft in a tactical maneuver such as a dive of the point at which recovery must be immediately initiated to prevent the aircraft from descending below a minimum desired altitude monitors and the altitude, descent rate and pitch angle of the aircraft, and issues a voice warning when recovery must be initiated. The system also provides warnings of dangerous flight conditions during non-tactical or common route segments of a flight such as the takeoff, landing and cruise segments of a flight. Circuitry responsive to the arming of the weapons of the aircraft enables the tactical warning portion of the system and disables …

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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 June 27, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 27, 2006.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 24, 1987
GrantedJune 27, 1989
Term endedJune 27, 2006
Patent numberCA 1256564 A
Classification (IPC)G08B23/00 +1 more

Timeline

Timeline From CIPO dates

1988199019921994199619982000200220042006Application filedMarch 24, 1987Patent grantedJune 27, 1989Term endedJune 27, 2006

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