Expired Canadian patentCanada
Separation of crude oil at the well head
CA 2565546 C · Owner: Schlumberger Norge As · Inventors: Oserod, Stein Egil
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The initial separation of the fluid provided from an oil well using a separator previously known only from the area of degassing and flotation of process water from oil recovery.
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 January 20, 2005 and granted September 17, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 20, 2025.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJanuary 20, 2005
GrantedSeptember 17, 2013
Term endedJanuary 20, 2025
Patent numberCA 2565546 C
Classification (IPC)B01D19/00 +1 more
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.