He3 solenoid magnetometer
CA 2049148 C · Owner: Raytheon Company · Inventors: Marton, Bela Istvan; Mcgregor, Douglas D.; Colegrove, Forrest Donald
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A magnetometer having an enclosed cell (19) containing He3 therein for receiving light from a light source (5) a light source, (3, 5, 11, 15) for directing light to the enclosed cell (19) along a predetermined path, a single pick-up coil containing therein the light source and the enclosed cell (1a) s solenoid containing the, pick-up coil therein and a data collection system coupled to the pick-up coil. The light source is a source of circularly polarized light and can comprise a He4 cell and an optical system and a circular polarizer disposed serially between He4 cell and enclosed cell containing He3. The predetermined path of the light source the enclosed cell and the pick-up coil are …
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 August 13, 1991 and granted October 17, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 13, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 13, 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.