Injectable hyaluronic acid derivative with pharmaceuticals/cells
CA 2355768 C · Owner: Pastorello, Andrea · Inventors: Callegaro, Lanfranco; Radice, Marco; Pavesio, Alessandra
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed is an injectable, biocompatible and biodegradable composition comprising at least one hyaluronic acid benzyl ester or auto-cross-linked derivative, in combination with at least one mammalian cell and/or at least one pharmacologically or biologically active substance and/or micro-particles such as fibres, granules, microspheres or sponge fragments of a hyaluronic acid derivative.
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 December 21, 1999 and granted January 25, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 21, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 21, 2021.
- 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.