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Expired Canadian patentCanada

Augmentor wing structure for aircraft

CA 824017 A · Owner: The De Havilland Aircraft Of Canada · Inventors: Smith, Edward H.; Farbridge, Joseph E.; Whittley, Donald C.

CIPO record

Overview

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

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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 September 30, 1969. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 30, 1986.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledFebruary 22, 1968
GrantedSeptember 30, 1969
Term endedSeptember 30, 1986
Patent numberCA 824017 A
Classification (IPC)B64C3/00 +2 more

Timeline

Timeline From CIPO dates

196919711973197519771979198119831985Application filedFeb 22, 1968Patent grantedSep 30, 1969Term endedSep 30, 1986

Sources & verification

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