Mixing apparatus and method
CA 2001291 A1 · Owner: The British Petroleum Company P.L.C. · Inventors: Colman, Derek A.; Mackley, Malcolm R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Case 7055(2), ABSTRACT OF THE DISCLOSURE MIXING APPARATUS AND METHOD, Apparatus and method for effecting mass or heat transfer between the bulk of a fluid and a surface boundary layer of the fluid at a transfer surface in which the fluid is passed in pulsatile flow through a conduit having a transfer surface comprising at least a part of the surface of an array of cylinders positioned transverse to the direction of fluid flow. The transfer surface may comprise a membrane for example a hollow fibre membrane.
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 24, 1989. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 24, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 24, 2011.
- 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.