Bioabsorbable adhesive compounds and compositions
CA 2689916 C · Owner: Roby, Mark S. · Inventors: Roby, Mark S.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A bioabsorbable composition comprising an amine--substituted polyalkylene glycol and a bioabsorbable isocyanate wherein the bioabsorbable isocyanate has the formula R' 4-n-C-(R)n wherein the R' groups can be the same or different at each occurrence and are each individually chosen from the group consisting of -H and C1 to C8 alkylene groups n is a number of from 2 to 4, and the R groups can be the same or different at each occurrence and are each individually chosen from the group consisting of polyalkylene oxide groups and polyalkylene oxide groups substituted with at least one isocyanate group having the formula: - An-NCO wherein A is a bioabsorbable group and n is from 1 to about 20 with …
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 June 19, 2002 and granted February 12, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 19, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 19, 2024.
- 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.