Expired Canadian patentCanada
Manifold antenna structure for reducing reuse factors
CA 2101159 C · Owner: Bruckert, Eugene J. · Inventors: Bruckert, Eugene J.
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A system is offered of increasing signal quality within a cellular communication system through the use of directional antennas (500 501, 502, 503) and random assignment of communication resources.
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 10, 1992 and granted August 10, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 10, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 10, 2014.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledFebruary 10, 1992
GrantedAugust 10, 1999
Term endedFebruary 10, 2012
Patent numberCA 2101159 C
Classification (IPC)H04B7/26 +2 more
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.