Sewer line vent clamp assembly
CA 2104342 C · Owner: Adinolfe, Joseph P. · Inventors: Adinolfe, Joseph P.; Adinolfe, Nicholas
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention provides a clamp assembly for strengthening the primary joint between two pipes; in particular a flaired sewer trap line and a corresponding vent line. The clamp assembly includes: two sets of clamps, the first for frictionally engaging the outer circumference of the vent line and the second for engaging the flaired housing at the end of the sewer trap line; and connector rods, boltably engaging both sets of clamps so that the clamps, as well as the respective pipes held by those clamps may be drawn together to strengthen the primary joint between the two pipes. So that the frictional resistance of the first clamp set may be increased, the inner surface of the first …
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 August 18, 1993 and granted August 12, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 18, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 18, 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.