Compositions for the production of antimicrobial films
CA 2320134 C · Owner: Sawan, Samuel P. · Inventors: Subramanyam, Sundar; Yurkovetskiy, Alexander; Sawan, Samuel P.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to a composition that when applied to a , substrate, forms an adherent transparent, water insoluble polymeric film on the substrate surface that provides sustained antimicrobial disinfecting action for prolonged periods, without the necessity for reapplication. The coating provides surface disinfecting action by a contact-killing mechanism and does not release its components into contacting solutions at levels that would result in solution disinfection. The polymeric film formed by the composition of the invention can be removed by treatment with dilute alcoholic base.
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 11, 1999 and granted April 10, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 11, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 11, 2021.
- 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.