Apparatus for steering an antenna system
CA 2461967 A1 · Owner: Thomas, Louis David · Inventors: Thomas, Louis David
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus (30) for adjusting the phase of signals supplied to each element (E1-E8) of an antenna having a plurality of antenna elements each element , having a respective transmission line (34a 34b) associated therewith, the , apparatus comprising first supporting means (32) having a plurality of said transmission lines (34a, 34b) disposed thereon and second supporting means , (36), movable relative to said first supporting means (32) having a plurality , of coupling links (38) disposed thereon. Each of said coupling links (38) comprises a length of transmission line arranged to capacitively couple with at least one of said transmission lines (34a 34b) such that movement of said , …
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 October 22, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 22, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 22, 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.