Rotor blade for a wind power plant
CA 2793780 C · Owner: Wobben, Aloys · Inventors: Wobben, Aloys
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a rotor blade for a wind power plant and a wind power plant. The aim of the invention is to create a profiled rotor blade or wind power plant that exhibits superior performance as opposed to the past. Said aim is achieved by a rotor blade the cross section of which has a maximum thickness at a location lying within a range of about 15 to 40 percent relative to the profile depth preferably within a range of about 23 to 28 percent the maximum profile thickness ranging between about 20 and 45 percent preferably between about 32 and 36 percent.
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 May 28, 2003 and granted August 13, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 28, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 28, 2025.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.