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Expired Canadian patentCanada

Compliant pile system for supporting a guyed tower

CA 1164669 A · Owner: Exxon Production Research Company · Inventors: Hasle, Alf E.

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

A compliant pile system for supporting the vertical weight of a guyed tower structure installed in a body of water. The pile system is comprised of at least one pile element which in turn is comprised of a pile jacket and a pile member. The pile jacket extends from one point in the structure to a second point which lies above the first point and is attached at only one point to the structure. The pile member passes through the pile jacket and is forced into the marine bottom and is attached only at its upper end to the pile jacket. In one modification the pile jacket is comprised of an odd number of concentrically positioned sleeves with the pile member being affixed to the top of 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

  • Granted April 3, 1984. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 3, 2001.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 25, 1982
GrantedApril 3, 1984
Term endedApril 3, 2001
Patent numberCA 1164669 A
Classification (IPC)E02B17/02 +1 more

Timeline

Timeline From CIPO dates

1983198519871989199119931995199719992001Application filedJune 25, 1982Patent grantedApril 3, 1984Term endedApril 3, 2001

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