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Expired Canadian patentCanada

Oilfield elements having controlled solubility and methods of use

CA 2559111 C · Owner: Marya, Manuel · Inventors: Marya, Manuel; Bhavsar, Rashmi; Vaidya, Nitin Y.

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Abstract From the Canadian patent

Oilfield elements are described, one embodiment comprising a combination of a normally insoluble metal with an element selected from a second metal a semi- metallic material, and non-metallic materials; and one or more solubility-modified high strength and/or high-toughness polymeric materials selected from polyamides polyethers, and liquid crystal polymers. Methods of using the oilfield elements in oilfield operations are also described. This abstract allows a searcher or other reader to quickly ascertain the subject matter of the disclosure. It will not be used to interpret or limit the scope or meaning of the claims. 37 CFR 1.72(b).

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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 September 6, 2006 and granted February 4, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 6, 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.
FiledSeptember 6, 2006
GrantedFebruary 4, 2014
Term endedSeptember 6, 2026
Patent numberCA 2559111 C
Classification (IPC)C09K8/02 +1 more

Timeline

Timeline From CIPO dates

2007200920112013201520172019202120232025Application filedSep 6, 2006Patent grantedFeb 4, 2014Term endedSep 6, 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.