Pvdf membranes
CA 2608277 C · Owner: Braesch-Andersen, Sten · Inventors: Braesch-Andersen, Sten
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention provides a method for providing a stable activated polyvinyl difluoride (PVDF) , membrane that can be dried and stored while still retaining its high binding properties. The method , comprising treating a PVDF membrane by: (a) contacting said membrane with an alcohol and a , wetting agent, wherein the wetting agent is a sugar; and (b) drying said membrane in the presence of , the wetting agent.
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 9, 2006 and granted March 17, 2015. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 9, 2026.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.