Ruthenium/tin bimetallic catalyst
CA 2214429 C · Owner: Jacquot, Roland · Inventors: Ferrero, Rose-Marie; Jacquot, Roland
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention concerns a bimetallic catalyst including tin and ruthenium boron-free, that will be on a support in future. This bimetallic catalyst can be used to prepare aldehydes through hydrogen vapour phase reduction of acids esters or carboxylic anhydrides.
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 October 23, 1992 and granted June 26, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 23, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 23, 2014.
- 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.