Supported catalyst, method for the preparation thereof, and use thereof for the dehydrogenation of hydrocarbons
CA 2067390 C · Owner: Styron Llc · Inventors: Van Buren, Frederik Roelof; Stobbe, Dick Edward; Van Dillen, Adrianus Jacobus
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A catalyst comprising a preshaped porous support material having applied thereto in finely divided form an active compound chosen from at least one compound of vanadium chromium, manganese, iron, cobalt, nickel copper and zinc, and , optionally a promoter chosen from at least an alkali(ne earth) metal compound method for the preparation thereof and use thereof in the dehydrogenation of hydrocarbons.
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 29, 1990 and granted May 8, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 29, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 29, 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.