Lifting keel for sporting sail boats
CA 1108481 A · Owner: Guido, Jurgen · Inventors: Guido, Jurgen; Binzer, Norbert
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure A lifting keel for sporting sail boats having a shaft obliquely inclined in forward and upward directions slidably receiving the lifting keel and for guiding the same in the shaft the upper area of the lifting keel being provided with sliding shoes on the forward and rearward longitudinal edges which, sliding shoes are guided in associated prismatic guides of the shaft, one sliding shoe being provided on either side thereof with a protruding V-profile, the shoe guide enclosing said two Vprofiles of the sliding shoe while a further sliding shoe is guided in an associated guide only by two oppositely arranged sliding surfaces.
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 September 8, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 8, 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.