De-icing of satellite antenna with cover
CA 2231844 C · Owner: Walton, William B. Jr. · Inventors: Walton, William B. Jr.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A system for preventing the interruption of satellite communications between an earth antenna and a satellite during inclement weather. The system is comprised of a cover (112), which covers the antenna (100) and substantially prevents the accumulation of snow and precipitation on the antenna (100) and , a heating system (124) which provides heated air to a space between the cover (112) and the antenna (100) to inhibit snow from sticking to the cover (112) and also to inhibit the formation of frozen moisture on the cover (112) during freezing rain and freezing fog conditions. In one embodiment the system has , an electric, gas or oil heater and a blower system (172) which draws air …
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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 September 19, 1996 and granted February 5, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 19, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 19, 2018.
- 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.