Seal and installation improvements
CA 2133052 A1 · Owner: Hunter Energy And Technologies Inc. · Inventors: Quick, John
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A direct vent gas baseboard heater has field installable concentric air intake tube and exhaust pipe. The intake pipe and exhaust tube can be cut separately from the remainder of the heater improving the, efficiency of installation. They can also be transported aligned with the remainder of the heater reducing, packaging size. The manufacturer can provide a single size of tube and pipe for a variety of installation situations. The tube connects to a base cabinet through a key hole configuration of tabs and cuts and is, twisted until the tabs meet stops in the base cabinet. An extrusion in an air box in the base cabinet is brought against a gasket on a flange of the tube fixing the tube and …
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 September 27, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 27, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 27, 2016.
- 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.