Multiple, self-adjusting downhole gas separator
CA 2099099 C · Owner: Lopes, Divonsir · Inventors: Lopes, Divonsir
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention refers to a multiple, self-adjusting downhole gas separator (91),composed of an external decanting pipe (95) featuring perforations in its periphery and a, concentric inner suction pipe (99) equipped with inverted L-shaped suction pipe by-passes (99) on its periphery, as well as adjacent elastic elements (103) in vertical succession for the lateral support of retention cups (105), located adjacently in the space (107) between the external decanting pipe (95) and the inner suction pipe (99) and in vertical succession.
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 June 23, 1993 and granted April 15, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 23, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 23, 2015.
- 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.