Pipe ring apparatus and method
CA 2584746 C · Owner: Bradley, Earl Terence · Inventors: Bradley, Earl Terence
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus and method according to which the apparatus includes a pair of connected arcuate members for clamping around a pipe with each arcuate member , including at least one protrusion. The arcuate members have a first material hardness and at least a portion of the at least one protrusion has a second material hardness that is greater than the first material hardness so that the portion penetratingly engages the pipe when the arcuate members are clamped around the pipe.
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
- Filed October 21, 2005 and granted September 17, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 21, 2025.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.