High voltage converter
CA 2059055 C · Owner: Sutherland, Brian A. F. S. · Inventors: Sutherland, Brian A. F. S.; Mcginn, Donald Scott; Rosenbaum, Stanley Daniel
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
High voltage converters are disclosed. The converters include at least a pair of transistor switches provided on the secondary windings of a flyback transformer. The transistor switches are controlled to be conducting variably conducting and non-conducting so that the power flow between the transformer and a load can be controlled. Various configurations of a connection switch network are also disclosed.
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 January 8, 1992 and granted February 4, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 8, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 8, 2014.
- 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.