Process for the production of mono-olefins
CA 2073850 C · Owner: B P Amoco P.L.C. · Inventors: Griffiths, David C.; Howard, Mark J.; Astbury, Christopher J.
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 mono-olefins from a paraffin-containing hydrocarbon feed having at least two carbon atoms which comprises a first step of partially combusting a mixture of the hydrocarbon feed and a molecular oxygen-containing gas in contact with a catalyst capable of supporting combustion beyond the normal fuel rich limit of flammability the first step being carried, out under a total pressure of greater than 5 bar absolute and at a temperature of greater than 650°C; and a second step of cooling the mono-olefinic products to 600°C or less within less than 50 milliseconds of formation.
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 July 14, 1992 and granted October 8, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 14, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 14, 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.