Dual-polarized dipole antenna
CA 2322029 C · Owner: Gabriel, Roland · Inventors: Gottl, Maximilian; Gabriel, Roland
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a dual-polarized dipole antenna which consists of several separate dipoles. Said dipoles are preferably arranged in front of a reflector (33) and form a dipole square when viewed from above whereby each , dipole (111-114) is supplied with current via a symmetrical line (115-118). The invention is characterized by the following features: The dual-polarized dipole antenna transmits electrical radiation in a polarization at an angle of +45~ or -45~ in relation to the constructively predetermined alignment of the dipoles (111-114); the ends of the symmetrical or approximately symmetrical lines which lead to the respective dipole halves (111a to 114b) are …
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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 December 16, 1999 and granted July 8, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 16, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 16, 2021.
- 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.