Wave reduction device
CA 1065626 A · Owner: British Petroleum Company Limited (The) · Inventors: Duckworth, Roger; Desty, Denis H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Wave reduction device comprising a wholly or partially liquid filled 'mattress' structure. The 'mattress' is rendered buoyant and formed from a number of parallel units the upper and lower, surfaces of the units being connected to yield a puckered structure thereby providing a resistance to liquid flow within the units. The buoyancy is chosen so that the 'mattress' lies awash in the water.
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 November 6, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 6, 1996.
- 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.