Printed circuit transformer hybrids for rf mixers
CA 2231825 C · Owner: Lg Electronics Inc. · Inventors: Dobrovolny, Pierre
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A high frequency partial transformer hybrid includes a first divided circular conductive element affixed to one side of an insulated substrate and a second split, circular conductive element affixed to the other side of the substrate juxtaposed to, the first element. Plated-through holes in the substrate interconnect pads on the, first and second elements. Connection tabs on the elements are adapted to be connected to conductors on a printed circuit board when the substrate is orthogonally supported in a rectangular recess in the substrate. In a transformer, hybrid embodiment, a third continuous circular conductive element is supported on, an additional substrate in alignment with and …
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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 March 11, 1998 and granted February 12, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 11, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 11, 2020.
- 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.