Tension leg platform
CA 1237903 A · Owner: Gjeruldsen, Erik · Inventors: Stageboe, Jan; Gjeruldsen, Erik
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A tension leg platform consisting of a platform deck (3) supported by a buoyancy structure (1) a bottom, anchoring structure (2) and tension elements (4) extending between the buoyancy structure (1) and the bottom anchoring structure (2). The buoyancy structure (1) comprises a hollow, annular, substantially cylindrical wall forming a can-shaped body having a vertical axis and being fully open at the upper and lower ends the, height as well as the diameter of said body being substantially larger than the thickness of the annular wall in plan view, said wall consisting of closely adjacent, closed, substantially cylindrical upright, concrete cells (5, 7), of which at most half are extended to …
Read the whole patent
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 June 14, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 14, 2005.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.