Pipe clamp
CA 2338863 A1 · Owner: Milligan, William · Inventors: Milligan, William
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A pipe clamp comprises a pair of semi-circular sections (2 and 3) which are , attached one to another by a pair of fittings (4). A threaded tensioning rod (8) provided with adjustment nuts (9) is fitted to each fitting (4). In use the pipe clamp (1) is fitted around the end of a first section of pipe (12). The nuts (9) on the rods (8) are tightened so that the clamp pulls the end of the pipe (12) into the correct profile. A secondary pipe (13) is put in position adjacent to the parent pipe (12). Secondary clamps (14) are mounted on the main clamp (1) and are provided with jacking bolts (16). By adjusting the jacking bolts (16) the secondary pipe (13) is also brought into a round …
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 July 29, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 29, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 29, 2021.
- 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.