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Canadian application, no grantCanada

Intelligent down hole testing system

CA 2290050 A1 · Owner: Halliburton Energy Services, Inc. · Inventors: Burris, Wesley J. Ii

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

An intelligent down hole testing system for conducting well testing has down hole flow and shut-in logic and sampling logic. The system allows for flow, and shut-in testing and fluid sampling down hole without the need for surface monitoring or control.

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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 November 17, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 17, 2019.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 17, 2021.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 17, 1999
GrantedNo grant recorded
Term endedNovember 17, 2019
Patent numberCA 2290050 A1
Classification (IPC)E21B49/08 +2 more

Timeline

Timeline From CIPO dates

2000200220042006200820102012201420162018Application filedNov 17, 1999Term endedNov 17, 2019

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.