Compositions of crosslinkable prepolymers for biodegradable implants
CA 2404683 C · Owner: Schacht, Etienne Honore · Inventors: Schacht, Etienne Honore
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A composition suitable for preparing , a biodegradable implant comprising a crosslinkable , multifunctional prepolymer having at least two polymerizable end groups, the said composition having a viscosity such that it is deformable at a temperature of 0° to 60 °C into a three-dimensional shape and being crosslinkable within the said temperature range. The prepolymer comprises a hydrophilic region and/or the composition further comprises an effective amount of a mineral biologically-active component delivery system and/or a biocompatible degradable porosity-inducing component.
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 April 3, 2001 and granted February 8, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 3, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 3, 2023.
- 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.