Downhole formation sampling
CA 2558238 C · Owner: Pelletier, Michael T. · Inventors: Ballweg, Thomas F. Jr.; Van Zuilekom, Anthony Herman; Welch, John C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Methods, systems and apparatuses for downhole sampling are presented. The sampling system includes a control unit and a housing to engage a conduit (140). The housing at least partially encloses at least one formation sampler (220) to collect a formation sample. The formation sampler is stored in a sampler carousel (225). A sampler propulsion system (215) forces the formation sampler into the formation. The propulsion system is in communication with the control unit.
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 March 4, 2005 and granted July 9, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 4, 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.
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.