Subterranean formations treating fluid concentrates, treating fluids and methods
CA 2390052 A1 · Owner: Cole, R. Clay · Inventors: Bowles, Bobby K.; Walters, Harold G.; Wilson, Steve F.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Subterranean formation treating fluid concentrates treating fluids and , methods are, provided by the present invention. The treating fluid concentrates are basically comprised of, water and a substantially fully hydrated depolymerized polymer. The treating fluids which, are formed by adding water to the treating fluid concentrates are basically comprised of, water, a substantially fully hydrated depolymerized polymer and a crosslinking agent for, crosslinking the hydrated depolymerized polymer.
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 June 7, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 7, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 7, 2024.
- 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.