Expired Canadian patentCanada
Novel metal complexes free from fluorine for gas-phase deposition of metals
CA 2500386 C · Owner: Centre National De La Recherche Scientifique · Inventors: Doppelt, Pascal
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 invention concerns novel copper (I) or silver (I) complexes and their use for gas-phase chemical deposition of metal copper or silver almost free of impurities.
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 September 25, 2003 and granted March 13, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 25, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 25, 2025.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 25, 2003
GrantedMarch 13, 2012
Term endedSeptember 25, 2023
Patent numberCA 2500386 C
Classification (IPC)C07F1/00 +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.