Lightning protection for an active antenna using patch/microstrip elements
CA 2329668 C · Owner: Judd, Mano D. · Inventors: Monte, Thomas D.; Judd, Mano D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An active antenna system having lightning corona and low frequency static, energy protection includes a plurality of patch antenna elements a feed , structure, operatively interconnecting the patch antenna elements and at least one , conductive drain, line coupled with each of the patch antenna elements. The drain lines are coupled, together at a common ground connection point.
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 December 27, 2000 and granted August 19, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 27, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 27, 2022.
- 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.