Hook shaped pipe hanger
CA 2125249 C · Owner: Chieftain Corporation · Inventors: Ismert, Joseph P.; Julian, Frank J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A pipe hanger is formed of an elongate stem joined to a flexible, curved, substantially semicircular lower hook portion. The stem has holes therethrough for nailing to a support beam and suspending a run of plumbing piping from the support beam. The hook portion is of commensurate size to the pipe and cradles the pipe in a suspended position. In a preferred embodiment, a tooth extending angularly outwardly, and downwardly from the portion of the stem adjacent to the hook portion cooperates with the hook tip so that there is a snap fit between the tooth end and the hook tip as the pipe is urged therebetween and into a retained cradling relation in, the hook portion. Several alternative …
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 June 6, 1994 and granted December 2, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 6, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 6, 2016.
- 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.