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Expired Canadian patentCanada

Wind turbine "runner" impulse type

CA 1266005 C · Owner: Obidniak, Louis · Inventors: Obidniak, Louis

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

There is provided a new blade for a wind turbine device, and as well, a wind turbine device incorporating improved features. The blade is capable of directing air in a radial, circumferential and parallel relationship to incoming air relative to the axial relationship of the incoming air.

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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 February 20, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 20, 2007.
  • 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 7, 1984
GrantedFebruary 20, 1990
Term endedFebruary 20, 2007
Patent numberCA 1266005 C
Classification (IPC)F03D1/00 +1 more

Timeline

Timeline From CIPO dates

19851988199119941997200020032006Application filedFeb 7, 1984Patent grantedFeb 20, 1990Term endedFeb 20, 2007

Sources & verification

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