Bonding layers for medical device surface coatings
CA 2278706 A1 · Owner: Whitbourne, Richard J. · Inventors: Whitbourne, Richard J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A medical device is coated with a thin coherent bond coat of acrylics epoxies, acetals, ethylene copolymers, vinyl polymers polymers containing , hydroxyl, amine, carboxyl amide, or other reactive groups, and copolymers thereof. Outer layers may be applied and remain adherent to the substrate in water for an extended period. The bond coat may comprise cross linkers such as urea resins, melamines, isocyanates, and phenolics. Preferred polymers include vinylpyrrolidone-vinyl acetate, styrene acrylic polymer ethylene acrylic acid , copolymer, carboxyl function acrylic polymer hydroxyl function acrylic , polymer, and acrylic dispersion polymer. The coatings may be applied to inert metal or …
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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 January 27, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 27, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 27, 2020.
- 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.