Induction furnace having a modular induction coil assembly
CA 2102869 C · Owner: Cignetti, Nicholas P. · Inventors: Cignetti, Nicholas P.; Heine, Hans G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An induction furnace is disclosed comprising a crucible for holding a material to be heated by the furnace an induction coil assembly, and a module-support assembly surrounding and radially supporting the induction coil assembly so as to facilitate the replacement and reconnection of the induction coil assembly. The induction coil assembly comprises an induction coil, an upper yoke, a lower yoke and a plurality of intermediate, yokes that are spaced apart from each other. The induction coil is wound around the crucible and defines the periphery of the induction furnace. The intermediate yokes are arranged to extend around substantially all of the periphery defined by the wound induction …
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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 November 10, 1993 and granted September 1, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 10, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 10, 2015.
- 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.