Boat propeller
CA 1102632 A · Owner: Ab Volvo Penta · Inventors: Soderbaum, Carl U.
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 boat propeller with foldable blades, a so-called folding propeller. The characteristic feature of the propeller is that it is provided with flexible means, which are disposed to brake the swinging movement of the blades as they are spread out from the folded position to the operating position.
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
- Granted June 9, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 9, 1998.
- 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.