Floatable breakwater
CA 2062740 A1 · Owner: Jackman, Stephen E. · Inventors: Jackman, Stephen E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A floatable breakwater consists of an array of flotation units (11) preferably used tyres (12) with a filling of buoyant material (13) flexibly linked together in two mutually orthogonal directions to form a module (21). Successive modules (21 23, 24) may be , linked together to any desired length or breadth. The flotation units are used to support a molluscs culture rope (16) and a gantry (33) may be positioned across the flotation units to work the culture ropes.
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 April 10, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 10, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 10, 2012.
- 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.