Joining system for tubular members
CA 2350898 A1 · Owner: Hewett, Frank W. · Inventors: Hewett, Frank W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A joining system for tubular members which uses attaching members and stabilizing members. The stabilizing members are a ring like shape having a plurality of grooves. The attaching members are generally a bolt and wing nut combination. One tubular member is attached to another tubular member by a groove in a stabilizing member being positioned against a first tubular member another groove of, the stabilizing member being positioned against a second tubular member at a desired angle. The attaching member is positioned through holes in the tubular members and stabilizing members. Two wing nut wrenches for attaching tubular members to each other are also disclosed. One wing nut wrench has a …
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 18, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 18, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 18, 2023.
- 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.