Satellite tracking system using orbital tracking techniques
CA 2417026 C · Owner: Strickland, John I. · Inventors: Morris, Steven; Strickland, John I.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method and apparatus are provided for tracking a signal source using an antenna with a predetermined beamwidth. The method includes the steps of measuring a signal level from the signal source along an arc within the beamwidth of the antenna determining a rate of change of the measured signal level along the arc and solving for a position on the arc where the determined rate of change of the signal level substantially equals zero.
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 January 23, 2003 and granted August 2, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 23, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 23, 2025.
- 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.