Sample catcher for underbalanced drilling operations
CA 2359522 A1 · Owner: Greenhouse Gas Separation Systems Inc. · Inventors: Cerenzie, Albert
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A sample catching apparatus includes an intake manifold an outflow manifold, a first, screening chamber and a second screening chamber. The sample catcher receives the returning, drill stream from a manifold shack and directs the drill stream into a separation vessel. Removable pails within the screening chambers retain a portion of the solids in the drill stream, while allowing fluids to pass through.
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 22, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 22, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 22, 2023.
- 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.