Aquaculture of marine worms
CA 2452795 A1 · Owner: Seabait Limited · Inventors: Cowin, Peter Brian Douglas; Craig, Stephen; Olive, Peter James William
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention provides a method for the aquaculture of marine deposit feeders, such as Arenicola marina and Arenicola defodiens. The method comprises providing a foodstuff such as brewery yeast or waste from fish farms within the substrate housing the worms. The foodstuff is conveniently particulate or microparticulate to aid intimate admixture with a substrate which is typically sand.
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 July 1, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 1, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 1, 2024.
- 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.