Aqueous silicone coating compositions, method of coating substrates with the same and coated surgical needles produced thereby
CA 2123374 A1 · Owner: Sherwood Services Ag · Inventors: Vitali, Dario; Prasad, Jannaih S.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An aqueous silicone coating composition containing a reactive siloxane polymer and a non reactive dimethylpolysiloxane in an aqueous carrier having an effective amount of at least one dispersing agent to disperse the siloxanes throughout the aqueous carrier. Also provided is a method of lubricating substrates by applying an aqueous silicone coating composition to the substrate and curing the silicone thereon as well as lubricated surgical needles prepared by that method.
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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 11, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 11, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 11, 2016.
- 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.