Fan blade assembly and method of assembling
CA 2413060 A1 · Owner: Liang, Hai · Inventors: Liang, Hai
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
19-, A fan blade assembly includes a mounting arm having a first end adapted to engage a fan rotor and a second end adapted to receive a fan blade, At least two mounting posts are disposed on the second end of the mounting arm and a fan blade hay apertures for receive the mounting posts. A clamp plate has apertures with a receiving portion and a retaining portion. The receiving portion is adapted to receive the mounting posts and the clamp plate is movable to a securing position where the retaining portions engages with the mounting posts to secure the clamp plate and fan blade to the mounting arm.
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 November 27, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 27, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 27, 2024.
- 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.