High voltage transformer having radiating ribs
CA 2283013 A1 · Owner: Lee, Chea-How · Inventors: Lee, Chea-How
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A high voltage transformer having radiation ribs has a laminated core formed of a, plurality of accumulated iron plates first and second windings wound in the laminated core, and for converting an input voltage to a predetermined output voltage and a , plurality of, radiation ribs formed in the accumulated direction of the plurality of iron plates on the outer, periphery of the laminated core. The plurality of radiation ribs are formed as the plurality of, iron plates are accumulated by the accumulation of a plurality of protrusion portions formed, along each of the plurality of iron plates. According to this since the , radiation ribs are formed, on the outer periphery and in the …
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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 September 22, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 22, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 22, 2021.
- 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.