Biostatic polymer
CA 2601737 C · Owner: Kritzler, Steven · Inventors: Kritzler, Steven
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Methods and compositions effective for at least a week for prevention of microbial colony growth on a surface, for example an inanimate surface where , the surface is covered with a dry or substantially dry film formed from a composition comprising a polyvinyl alcohol and a quaternary ammonium compound. The film may be formed in situ by coating the surface with a solution or emulsion comprising a polyvinyl alcohol and a quaternary ammonium compound and then causing or allowing it to dry or substantially dry.
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 February 2, 2006 and granted June 17, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 2, 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.