Process for the preparation of branched olefins
CA 2055107 A1 · Owner: British Petroleum Company P.L.C (The) · Inventors: Barri, Sami A. I.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A process for the production of olefins which comprises passing an oxygenate- containing feedstock over a zeo type catalyst at a temperature greater than 200°C, characterised in that the feedstock comprising an olefin and, as oxygenate methanol, formaldehyde and/or, dimethylether the zeo type catalyst is of TON-type structure and the, feedstock includes added water.
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 November 7, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 7, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 7, 2013.
- 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.