Polymer for use in conduits, medical devices and biomedical surface modification
CA 2554167 C · Owner: Srai, Kaila · Inventors: Ramesh, Bala; Srai, Kaila; Darbyshire, Arnold
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A copolymer comprising (a) one or more pendant group segments and (b) one or more polyol segments, each of said segments being linked to one or more further segments, and one or more of the pendant group segments being selected from: (i) siloxane segments; (ii) segments containing phosphoryl choline or a derivative or analogue thereof; (iii) segments containing a di- or trifluoromethyl group; (iv) heparin-like segments containing a group of formula: (XII) D-N=N-Ar-SO3- (v) segments containing a group of formula: (I) Pn~-Lysn-Lys-Spacer-Lys-Alx in which D Ar, P, Lys, Al, Spacer, x, n , and n~ are as defined herein and wherein at least a part of each of said pendant group segment(s) …
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 January 20, 2005 and granted February 16, 2016. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 20, 2025.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.