Expired Canadian patentCanada
Method for producing degradable polymers
CA 2465406 C · Owner: Mezza, Michel · Inventors: Mezza, Michel
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to a composition for producing naturally- degradable substitutes of plastics and to a method for producing a granular combination of naturally-degradable polymers suitably usable in the plastic transformation industry.
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 28, 2004 and granted January 10, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 28, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 28, 2026.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 28, 2004
GrantedJanuary 10, 2012
Term endedApril 28, 2024
Patent numberCA 2465406 C
Classification (IPC)C08L67/04 +2 more
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.