Apparatus and method for removing roe from sea urchins
CA 2025762 A1 · Owner: Johannessen, Oyvind · Inventors: Johannessen, Oyvind
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus and related method for removing gonadal sacks from the interior walls of sea urchin shells. The apparatus comprises an elongated flat blade having a longitudinal knife edge flexible in a direction out of its plane the blade extending, outwardly from the end of a post in a direction normal to the longitudinal axis of the post, and means associated with the blade and post when the blade and corresponding end of the post extend into the shell of the sea urchin to cause them to rotate through 360° in the direction of the knife edge about an axis and when, positioned proximal to the inner of the shell cause the blade to, sever tissue and tendons bonding the gonadal sacks to the …
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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 September 19, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 19, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 19, 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.