Controllable transformer
CA 2467989 C · Owner: Magtech As · Inventors: Strand, Frank; Haugs, Espen
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A controllable transformer device comprising a body (1) of a magnetic material, a primary winding (4) wound round the body (1) about a first axis a , secondary winding (2) wound round the body (1) about a second axis at right angles to the first axis, and a control winding (3) wound round the body (1) about a third axis, coincident with the first axis.
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 November 21, 2002 and granted April 24, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 21, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 21, 2024.
- 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.