Antenna system with adjustable beam width and beam orientation
CA 2035599 C · Owner: Hollandse Signaalapparaten B.V. · Inventors: Reits, Bernard Jozef
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to an antenna system provided with at least one radiation source (1), a reflective surface (12) positioned in the radiation generated by the active radiation source (1) and light-generating means (13, 14). The reflective surface (12) is provided with semiconductor surfaces (2.i.j) and the light of the light-generating means (13, 14) is used to illuminate the semiconductor surfaces (2.i.j) such that after reflection of the, radiation generated by the active radiation source (1) at the reflecting semiconductor surfaces (2.i.j) a radiation beam is, obtained.
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 February 4, 1991 and granted August 23, 1994. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 4, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 4, 2013.
- 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.