Furnace pipe connection
CA 2378255 A1 · Owner: Barnoff, Dalton B. · Inventors: Barnoff, Dalton B.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to a pipe connection configuration which is particularly used for furnace exhaust pipe connection or the like. A sheet metal pipe with an open end thereof is mounted to a sheet metal T-shaped three-way pipe joint. The pipe joint has a first pipe section and a second pipe section extending perpendicularly from the first pipe section. The pipe joint includes a pair of diametrically opposed bayonet slots extending from an open end of the second pipe section for receiving and engaging a pair of diametrically opposed pins projecting radially and outwardly from the pipe when the open end of the pipe slides into the open end of the second pipe section, in order to …
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 22, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 22, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 22, 2024.
- 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.