Fiber optic radar guided missile system
CA 2002987 C · Owner: De La Chapelle, Michael · Inventors: Hsu, Hui-Pin; Friedenthal, Kenneth J.; De La Chapelle, Michael
Overview
Its claims, description and drawings are in the Canadian Patents Database.
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Abstract From the Canadian patent
A fiber optic radar guided missile system is disclosed which includes a radar receiver disposed in a missile for receiving radar reflections and providing a first optical signal in response thereto. An optical receiver is disposed at a launcher for receiving the first optical signal and for providing a set of electrical signals in response thereto. A fiber optic link is connected between the missile and the launcher for communicating the first optical signal from the radar receiver to the optical receiver.
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.
Why it's free to use
- Filed November 15, 1989 and granted April 5, 1994. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 15, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 15, 2011.
- 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.