Replaceable electrical device for drilling tool
CA 2618944 A1 · Owner: Marzouk, Joe · Inventors: Das, Pralay K.; Marzouk, Joe
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A replaceable battery pack for a downhole tool in a wellbore comprises a housing adapted to be insertably extractable in a cavity on an external surface of, the downhole tool. The housing is sized to fit substantially flush with a substantially uniform outer diameter of the downhole tool and is adapted to be extracted from the downhole tool without further disassembling the downhole tool. An electrical power cell is disposed in the housing. An electrical system is, disposed in the downhole tool disengageably engaged to the replaceable battery pack for receiving power from the replaceable battery pack. A seal is disposed in, a groove in the housing. The seal acts cooperatively with the …
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 26, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 26, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 26, 2025.
- 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.