Device for improving the resistance and the stiffness of a subsea conduit
CA 1182183 A · Owner: Snamprogetti S.P.A. · Inventors: Matteelli, Rolando; Berti, Alfredo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Device for improving the resistance and the stiffness of a subsea conduit, consisting of a section of pipeline having a increased thickness but with the same inside diameter, there being provided at the conduit and a length equal to from 2 to 5 times the increased for 0.5 to 10 times the nominal outside diameter of the conduit.
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 February 5, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 5, 2002.
- 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.