Chemical mollusc barrier
CA 2124782 C · Owner: Almond, David S. · Inventors: Matson, Robert M.; Puritch, George S.; Almond, David S.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A chemical barrier effective to irritate and repel molluses contains an active ingredient formed of fatty acid salts of monocarboxylic acids having chain lengths ranging from 8 to 14 carbon atoms coconut fatty, acid, palm kernel fatty acid and mixtures thereof. The barrier may be in the form of a solid or a gel-like material that is able to harden to a solid. A solid barrier may also be formed by providing a solid substrate coated with the active ingredient barrier composition.
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 May 31, 1994 and granted January 5, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 31, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 31, 2016.
- 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.