US3334420A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Terrestrial magnetism responsive device
Assignee: Individual
•
Filing: 1963-12-09
•
Granted: 1967-08-08
•
Expires: 1983-12-09
Abstract
No abstract record available.
Inventors
- 👤 Raymond F Stockton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 01:38
CPC Classifications
G; G01; G01V; G01V3/00; G01V3/08; G01V3/087
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
IN A MAGNETIC COMPASS ARRANGEMENT, A HOUSING STRUCTURE INCLUDING FIXED MAGNETIC MEANS ESTABLISHING A VERTICALLY DISPOSED MAGNETIC AXIS IN FIXED RELATION TO SAID HOUSING, AN EARTH MAGNETIC POLE SEEKING ELEMENT MOVABLY CARRIED BY THE HOUSING INCLUDING MAGNETIC MEANS FIXED TO SAID ELEMENT ESTABLISHING A VERTICALLY DISPOSED MAGNETIC AXIS AND COMBINING ATTRACTIONALLY WITH SAID FIXED MAGNETIC MEANS TO CONSTITUTE A BEARING MEANS, A FLUID DISPOSED IN SAID HOUSING ON WHICH SAID EARTH MAGNETIC POLE SEEKING ELEMENT IS BUOYANTLY SUPPORTED AT SUCH LEVEL THAT THE RESPECTIVE MAGNETIC MEANS CONSTITUTING SAID BEARING ARE HELD IN SPACED RELATIONSHIP BY SAID BUOYANT SUPPORT OF SAID ELEMENT AND ACCOMMODATE PIVOTAL MOVEMENT OF THE ELEMENT IN THE HOUSING ABOUT THE AXIAL LINE ESTABLISHED BY SAID VERTICAL AXES.
Claim 2
Dependent Claim
120 words
IN A MAGNETIC COMPASS ARRANGEMENT, A HOUSING STRUCTURE INCLUDING FIXED MAGNETIC MEANS ESTABLISHING A VERTICALLY DISPOSED MAGNETIC AXIS IN FIXED RELATION TO SAID HOUSING, AN EARTH MAGNETIC POLE SEEKING ELEMENT MOVABLY CARRIED BY THE HOUSING INCLUDING MAGNETIC MEANS FIXED TO SAID ELEMENT ESTABLISHING A VERTICALLY DISPOSED MAGNETIC AXIS AND COMBINING ATTRACTIONALLY WITH SAID FIXED MAGNETIC MEANS TO CONSTITUTE A BEARING MEANS, A FLUID DISPOSED IN SAID HOUSING ON WHICH SAID EARTH MAGNETIC POLE SEEKING ELEMENT IS BUOYANTLY SUPPORTED AT SUCH LEVEL THAT THE RESPECTIVE MAGNETIC MEANS CONSTITUTING SAID BEARING ARE HELD IN SPACED RELATIONSHIP BY SAID BUOYANT SUPPORT OF SAID ELEMENT AND ACCOMMODATE PIVOTAL MOVEMENT OF THE ELEMENT IN THE HOUSING ABOUT THE AXIAL LINE ESTABLISHED BY SAID VERTICAL AXES.
References Cited (Backward Citations)
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Cited
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Cited
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Cited
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Cited
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Cited
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Cited
US2638683A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-08-07 | 1971-02-06 | 1971-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-07 | 1975-02-06 | 1975-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-07 | 1979-02-06 | 1979-08-08 | $7700.00 | Window Closed / Lapsed |