Method and apparatus for the preparation of triptane and/or triptene
CA 2439571 A1 · Owner: Morris, George Ernest · Inventors: Kay, Richard Daniel; Elstner, Peter John; Cooper, Jeremy Bernard
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A continuous or semi-continuous process for the production of triptane and/or triptene from methanol and/or dimethyl ether in the presence in a reactor of an effective concentration of catalyst active for the conversion of methanol and/or dimethyl ether to triptane and/or triptene in which process co-produced water is separated from the catalyst as a vapour phase whilst the catalyst is retained in a liquid or solid phase. Preferably the catalyst comprises zinc , halide and is maintained in said reactor in an active form and an effective concentration. Apparatus for use in the process may comprise a reactor having at least one reaction zone and at least one separation zone.
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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 February 27, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 27, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 27, 2024.
- 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.