Base tee connection
CA 2418883 A1 · Owner: Trans Continental Equipment Ltd. · Inventors: Barnoff, Dalton B.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A base Tee connector far connecting, for example an exhaust pipe to a chimney liner, includes a section of cylindrical pipe made of sheet metal. The base Tee connector includes an open top end adapted for connection with the chimney liner, and an open bottom. A portion of the sheet metal of the cylindrical pipe is deformed and thereby defines a flat open side end adapted for connection with an exhaust pipe. The flat open side end defines a plane substantially tangential to the section of the cylindrical pipe such that a horizontal section of a conventional base Tee connector is significantly shortened while the flat open side end feature of the conventional base Tee connector is retained. …
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 February 14, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 14, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 14, 2025.
- 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.