US3341813A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic sensor device
Assignee: SECURITY CONTROLS Inc
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Filing: 1964-05-25
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Granted: 1967-09-12
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Expires: 1984-05-25
Abstract
No abstract record available.
Inventors
- 👤 Franklin I Fietcher
- 👤 Russell J O'neill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:16
CPC Classifications
G; G08; G08G; G08G1/00; G08G1/01; G08G1/042
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
119 words
A SENSOR IN THE PROXIMITY OF A MASS CAPABLE OF DISTORTING A MAGNETIC FIELD, SAID SENSOR COMPRISING IN COMBINATION, A NON-MAGNETIC SUPPORTING MEANS, A FIRST MAGNETIC FIELD CREATING MEANS MOUNTED ON SAID SUPPORTING MEANS IN A CONDITION OF SUBSTANTIAL STATIC BALANCE FOR OSCILLATORY MOVEMENT ABOUT A HORIZONTAL AXIS, A SECOND MAGNETIC FIELD CREATING MEANS FIXEDLY MOUNTED ON SAID SUPPORTING MEANS CONSTANTLY OPERATIVE TO TEND TO MAINTAIN SAID FIRST MAGNETIC FIELD CREATING MEANS IN A PREDETERMINED POSITION OF REPOSE, AND OTHER MEANS INCLUDING INTERACTING, NON-CONTACTING COMPONENT PARTS ASSOCIATED RESPECTIVELY WITH SAID SUPPORTING MEANS AND WITH SAID FIRST MAGNETIC FIELD CREATING MEANS, SAID INTERACTING, NONCONTACTING PARTS BEING EFFECTIVE, UPON MOVEMENT OF SAID FIRST MAGNETIC FIELD CREATING MEANS IN RESPONSE TO THE
Claim 2
Dependent Claim
119 words
A SENSOR IN THE PROXIMITY OF A MASS CAPABLE OF DISTORTING A MAGNETIC FIELD, SAID SENSOR COMPRISING IN COMBINATION, A NON-MAGNETIC SUPPORTING MEANS, A FIRST MAGNETIC FIELD CREATING MEANS MOUNTED ON SAID SUPPORTING MEANS IN A CONDITION OF SUBSTANTIAL STATIC BALANCE FOR OSCILLATORY MOVEMENT ABOUT A HORIZONTAL AXIS, A SECOND MAGNETIC FIELD CREATING MEANS FIXEDLY MOUNTED ON SAID SUPPORTING MEANS CONSTANTLY OPERATIVE TO TEND TO MAINTAIN SAID FIRST MAGNETIC FIELD CREATING MEANS IN A PREDETERMINED POSITION OF REPOSE, AND OTHER MEANS INCLUDING INTERACTING, NON-CONTACTING COMPONENT PARTS ASSOCIATED RESPECTIVELY WITH SAID SUPPORTING MEANS AND WITH SAID FIRST MAGNETIC FIELD CREATING MEANS, SAID INTERACTING, NONCONTACTING PARTS BEING EFFECTIVE, UPON MOVEMENT OF SAID FIRST MAGNETIC FIELD CREATING MEANS IN RESPONSE TO THE
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-09-11 | 1971-03-13 | 1971-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-11 | 1975-03-13 | 1975-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-11 | 1979-03-13 | 1979-09-12 | $7700.00 | Window Closed / Lapsed |