The use of polymers for inhibiting the denaturation of adsorbed proteins
CA 2239140 A1 · Owner: Vieira, Euridice · Inventors: Vieira, Euridice; Motschmann, Hubert; Lohr, Frauke
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed is a shaped article which comes into contact with a native protein and prevents denaturation of the protein when in use. The article is made of a polymer or has a part made of the polymer. The polymer has at least in a surface layer thereof, structural units having one two or, three fluorine atoms on a first carbon atom which is bonded to a second carbon atom which carries a hydroxyl group and being furthermore substituted by another trifluoromethyl group when the first carbon atom carries three fluorine atoms.
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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 29, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 29, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 29, 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.