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Expired Canadian patentCanada

Electromagnetic surveying for resistive or conductive bodies

CA 2598468 C · Owner: Rock Solid Images Plc · Inventors: Andreis, David

CIPO record

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Abstract From the Canadian patent

A method of analysing electromagnetic survey data from an area of seafloor (6) that is thought or known to contain a resistive or conductive body for , example a subterranean hydrocarbon reservoir (12) is described. The method , includes providing horizontal electromagnetic field data obtained by at least one receiver (125) from at least one horizontal electric dipole transmitter (22). Horizontal gradients in the electromagnetic field data are determined for a first component of the electromagnetic field data along a first direction and for a second component of the electromagnetic field data along a second direction. The first and second components can be the electric field along …

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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 February 3, 2006 and granted August 13, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 3, 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.
FiledFebruary 3, 2006
GrantedAugust 13, 2013
Term endedFebruary 3, 2026
Patent numberCA 2598468 C
Classification (IPC)G01V3/12

Timeline

Timeline From CIPO dates

2007200920112013201520172019202120232025Application filedFeb 3, 2006Patent grantedAug 13, 2013Term endedFeb 3, 2026

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