Method for making a product adhere to a surface
CA 2285285 C · Owner: Capsulis · Inventors: Laversanne, Rene; Roux, Didier; Degert, Corinne
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention concerns a method for making a product adhere to a surface characterized in that it consists in contacting with said surface a composition , wherein said product is incorporated in substantially spherical multilamellar vesicles, with a diameter between 0.1 and 100 µm consisting of concentric , membranes based on at least a surfactant separated by a solvent medium said , vesicles having an onion-like structure and bearing a global positive charge related , to the presence of at least a cationic agent within said vesicles. The surface to be , treated can be either an inert surface for instance a fiber or an assembly of fibers , such as a fabric, or a biological surface such …
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, 1998 and granted August 16, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 10, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 10, 2020.
- 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.