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Expired Canadian patentCanada

Flap/spoiler combination

CA 1292972 C · Owner: Martens, Wilhelm · Inventors: Renken, Juergen; Martens, Wilhelm

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 flap arrangement for an aircraft wing having along its trailing edge independently actuated high lift flap and spoiler. During cruising the flap is used for camber line curvature control while the spoiler is controlled in a follow up configuration such that a gap between the spoiler and the high lift flap does not form.

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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 December 10, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 10, 2008.
  • 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 28, 1986
GrantedDecember 10, 1991
Term endedDecember 10, 2008
Patent numberCA 1292972 C
Classification (IPC)B64C13/26 +1 more

Timeline

Timeline From CIPO dates

19871990199319961999200220052008Application filedAug 28, 1986Patent grantedDec 10, 1991Term endedDec 10, 2008

Sources & verification

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