Hydrogenation with cu-a1-x catalysts
CA 2032777 A1 · Owner: Wegman, Richard W. · Inventors: Bryant, David R.; Wegman, Richard W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Cu-Al-X CATALYSTS ABSTRACT OF THE DISCLOSURE, A process for hydrogenating feeds into their corresponding alcohols by contact with a coprecipitated catalyst comprising copper aluminum, and a metal (X) selected from the group consisting of magnesium, zinc, titanium, zirconium, tin nickel, cobalt and mixtures, thereof; that has been reduced with an increasing temperature during the reduction.
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 20, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 20, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 20, 2012.
- 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.