Tube and flange coupling assembly
CA 2133751 A1 · Owner: Clark, Alan K. · Inventors: Allread, Alan R.; Clark, Alan K.; Foster, Edward
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A coupling assembly having a flange (32) at least one tube (60) , and a tube connector. The flange (32) has an outer surface (40) and at least one inner surface (42). The inner surface (42) defines at least one tube receiving opening (44). The inner surface also defines a flange groove (46). A tube connection hole (50) extends through the flange (32) from the outer surface (40) to the inner surface (42). The hole is in communication with the flange groove (46). The tube (60) has an exterior surface (62). A groove (64) is defined by the exterior surface. The tube is inserted in the tube receiving opening (52) of the flange. The tube groove (64) is aligned with the flange groove (46). A tube …
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 March 29, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 29, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 29, 2015.
- 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.