Cultivation of micro-organisms on hydrocarbon medium
CA 1059049 A · Owner: Shell Canada Limited · Inventors: Topiwala, Harshad; Khosrovi, Behzad
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 micro-organisms which comprises continuously cultivating one or more hydrocarbon - utilising micro-organisms under aerobic conditions in a liquid growth medium comprising assimilable sources of nitrogen and essential mineral salts in the presence of a hydrocarbon withdrawing, from the growing culture liquid growth medium comprising micro-organisms, separating micro-organisms from the withdrawn liquid growth medium and recycling at least part of the withdrawn liquid growth medium to the growing culture in which process the withdrawn liquid growth medium is chilled to a temperature in the range of -5 to 20°C prior to, or during, the separation of the …
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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
- Granted July 24, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 24, 1996.
- 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.