Patent Yard Sign in
Expired Canadian patentCanada

Wind turbine design

CA 2349443 C · Owner: Tetrault, Jacques · Inventors: Tetrault, Jacques

CIPO record

Overview

Drawings and full text

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

Open the CIPO record

Abstract From the Canadian patent

There is disclosed a new concept of wind turbine comprising improved capabilities for the utilisation of the maximum energy from the wind in all possible speeds of wind. It includes a new and improved air intake module a performance oriented rotor system, an improved wind deflection unit and an electromechanical orientation system. This new design also controls the effect of overflow in case of wind speeds when other wind turbines have to be shut down. The new design is aimed at supplying the maximum of energy for multiple means of conversion to power.

Read the whole patent

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

  • Filed June 1, 2001 and granted August 21, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 1, 2021.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 1, 2023.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 1, 2001
GrantedAugust 21, 2012
Term endedJune 1, 2021
Patent numberCA 2349443 C
Classification (IPC)F03D3/00 +1 more

Timeline

Timeline From CIPO dates

2002200420062008201020122014201620182020Application filedJune 1, 2001Patent grantedAug 21, 2012Term endedJune 1, 2021

Sources & verification

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