Apparatus for attaching manifold assembly to gas control assembly of furnace
CA 2134309 C · Owner: Williams, Tommie L. · Inventors: Williams, Tommie L.; Kujawa, Matthew
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In a gas-fired furnace of the type having a manifold assembly, comprising a gas valve, a manifold orifices, extending from the manifold and located on a common line and, a gas control assembly having a burner box compartment the, improvement comprises an apparatus for attaching a manifold assembly to the burner box compartment. The apparatus comprises a plurality of brackets, each bracket being affixed to the manifold at a position essentially 180° from the common line of orifices, and essentially perpendicular to the common line; each end of the bracket is retained near opposite side of the opening of the burner box compartment and one end of, the bracket is affixed to the side wall of the …
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 October 25, 1994 and granted January 14, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 25, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 25, 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.