Earthen core analyzing means and method
CA 2031647 A1 · Owner: Pepin, Gregory Paul · Inventors: Davis, Lorne Arthur, Jr.; Hart, Timothy John; Moss, Robert Michael
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
EARTHEN CORE ANALYZING MEANS AND METHOD (D#78,925-F), ABSTRACT OF THE DISCLOSURE An earthen core analyzer includes a test cell which contains an earthen core. A tomographic system is used for testing the earthen core and provides signals corresponding to the tests. While the earthen core is being tested a fluid is, provided to the earthen core as part of the testing. The signals from the tomographic system are used to determine a porosity of the earthen core.
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 December 6, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 6, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 6, 2012.
- 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.