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Expired Canadian patentCanada

An apparatus and a method of visualizing target objects in a fluid-carrying pipe

CA 2536749 C · Owner: Ramstad, Einar · Inventors: Teague, Phil; Ramstad, Einar

CIPO record

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

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Abstract From the Canadian patent

An apparatus for recording and displaying images of an identifying material types in a target object (3) in a fluid carrying pipe where the apparatus , comprises a downhole unit (10) provided with a light source (1) arranged to emit high energy photons (2), and that the downhole unit (10) is further provided with a sensor unit (1a) arranged to register photons (4) reflected from the target object (3). The apparatus further comprises a control and display unit (8) provided with a signal transmission means (9) and a viewing screen (8a). Further, description a method of recording and displaying images of a target object (3) through use of the apparatus is also described.

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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 August 26, 2004 and granted April 25, 2017. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 26, 2024.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 26, 2026.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledAugust 26, 2004
GrantedApril 25, 2017
Term endedAugust 26, 2024
Patent numberCA 2536749 C
Classification (IPC)G01N23/20 +1 more

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedAug 26, 2004Patent grantedApril 25, 2017Term endedAug 26, 2024

Sources & verification

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