Apparatus and method of determining casing thickness and permeability
CA 2692550 C · Owner: Lynch, Jason A. · Inventors: Lynch, Jason A.; Miller, Jerry E.; Barolak, Joseph Gregory
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus for evaluating a ferromagnetic tubular within a borehole the apparatus comprising a tool conveyed in the borehole the tool having at least one magnet which configured to produce a magnetic flux in the tubular and at least one flux sensor responsive to magnetic flux and configured to provide an output indicative of an absolute thickness of the tubular.
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 10, 2006 and granted November 19, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 10, 2026.
- 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.