Tubing joint
CA 2177805 C · Owner: Yamazaki, Kiyoyasu · Inventors: Hama, Tomio; Yamazaki, Kiyoyasu
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A tubing joint is provided herein. The tubing joint includes a joint body havinga cylindrical shape and a ring claw comprising an elastic plate material. An outer edge of the ring claw includes a bent portion which is bent in a tube-admitting direction and which is located in a ring groove which is formed in the joint body. The ring claw has a plurality of radially-directed, U-shaped outer, notch sections which extend from the outer edge toward a centre of the ring claw. The U-shaped outer, notch sections include, a pair of spaced-apart parallel, sidewall portions which are interconnected by a semi-circular connecting portion. The ring claw further has a plurality of radially-directed …
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 May 30, 1996 and granted March 16, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 30, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 30, 2018.
- 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.