Flare-tube assembly
CA 2224788 C · Owner: Burner Systems International, Inc. · Inventors: Ridenour, Ralph G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A flare-tube assembly is provided that includes a tube (32) having a flare at a forward end thereof which angles outwardly and rearwardly and is generally Sshaped in cross section. The flare-tube assembly also includes an inverted flare fitting (10) which has external threads (18) an opening extending , therethrough, and a shoulder (36) encircling the opening at a forward end of the fitting (10). The shoulder (36) has a recess portion (24) near an outer diameter of the shoulder which is inwardly arcuate in cross section. The tube (32) extends through the opening with the shoulder (36) of the fitting (10) facing a rear side (48) of the flare. During installation the fitting (10) is , …
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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 17, 1996 and granted July 29, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 17, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 17, 2018.
- 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.