Drogue or sea anchor
CA 1304994 C · Owner: Abernethy, William J. · Inventors: Abernethy, William J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A sea anchor comprising a hollow body having a front part and a rear part and at least one water outlet located adjacent to the rear end of the front part. The front part has water inlet openings, and the rear part is moveable relative to the front part between first and second positions. In the first position, the forward end of the rear part engages the rear end of the front part to close at least one water outlet. In the second position the forward, end of the rear part is separated from the rear end of the front part to define the water outlet. The front part contains attachment means for attaching a line for towing the body in a forward direction.
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 July 14, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 14, 2009.
- 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.