Offshore platforms
CA 1290156 C · Owner: Bg Plc · Inventors: Wood, Peter Richard; Hollis, Andrew Patrick; Bunce, James William
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A marine structure for example an offshore, production platform comprises a floating base section which, can be flooded, having caissons thereon and a topsides mounted on the caissons. The caissons comprise at least two telescopic sections, the uppermost section carrying the topsides and the lowermost being mounted on the base. The structure can be installed by supporting the topsides for example, using the derrick of a jack-up rig and then, partially flooding the base section until the jack-up rig is supporting the topsides. On lowering the hook more of the, topsides weight is applied to the base and the structure sinks to the sea-bed where it is secured by grouting. The upper supported …
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 October 8, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 8, 2008.
- 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.