Lined pipe joint and method
CA 1209613 A · Owner: The Dow Chemical Company · Inventors: Prueter, Elton D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A pipe joint is provided by flanging a lined pipe, disposing and adhering a loose ring to each flange and clamping the rings with a split "V" type clamp, and applying an adhesive sealer between the loose ring and the conduit flange for improved ease of handling and improved corrosion resistance.
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 August 12, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 12, 2003.
- 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.