Apparatus, methods and joints for connecting tubular members
CA 1067927 A · Owner: Martin, Charles F. · Inventors: Martin, Charles F.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed are apparatus and methods for securing together pipe sections by cold forging the inside end of one or more pipe sections outwardly into a surrounding collar. In the detailed description of an exemplary application the invention is disclosed for use in connecting together the ends of subsea pipelines, J-tubes and other underwater conduits.
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 December 11, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 11, 1996.
- 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.