Interactive and/or secure activation of a tool
CA 2617375 C · Owner: Schlumberger Canada Limited · Inventors: Farrant, Simon L.; Rogers, Edward H.; Brooks, James E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A tool activation system and method includes receiving an authorization code of a user to verify access rights of a user to activate the tool. In one example the authorization code is receive from a smart card. The environment around the tool which can be in a wellbore, for example is checked. In response to the authorization code and the checking of the environment activation of the tool is enabled.
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 February 12, 2003 and granted March 27, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 12, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 12, 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.