Actively sterile surfaces
CA 2033107 C · Owner: Westaim Biomedical Canada Inc. · Inventors: Rosenfeld, Aron Marcus; Burrell, Robert Edward; Smith, Timothy J. N.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An actively sterile surface for a substrate and for use in a dynamically biological environment, such as for treating and preventing microbial infections, comprises a film consisting of at least an antimicrobial element and another electrochemically nobler element and which forms multitudinous galvanic cells with, electrolyte containing biological fluids such as body fluids from wounds, etc. for releasing the antimicrobial element at the surface.
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 December 24, 1990 and granted June 12, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 24, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 24, 2012.
- 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.