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Expired Canadian patentCanada

Complementary locking system for locking legs to the deck of an offshore drilling platform and methods of installing one such locking system

CA 2596676 C · Owner: Perol, Christian · Inventors: Thomas, Pierre-Armand; Cahay, Marc; Perol, Christian

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Abstract From the Canadian patent

The invention relates to a complementary locking system for locking legs to the deck of a jack-up offshore drilling platform. The inventive system comprises the following elements at each leg namely: at least one assembly (30) comprising plates (32) forming two counter-racks (31) which are intended to be engaged with a leg rack and on one side of the plates (32), at least one internal element (40) for connecting the internal edges (32a) of the plates (32) at least one external element (45) for connecting the external edges (32b) of the plates (32) and at least one intermediate member (50) for connecting said at least one internal element (40) to said at least one external element (45). The …

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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 1, 2006 and granted April 16, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 1, 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 1, 2006
GrantedApril 16, 2013
Term endedFebruary 1, 2026
Patent numberCA 2596676 C
Classification (IPC)E02B17/06 +1 more

Timeline

Timeline From CIPO dates

2007200920112013201520172019202120232025Application filedFeb 1, 2006Patent grantedApril 16, 2013Term endedFeb 1, 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.