Patent US3308412A successfully refreshed from Google Patents.
US3308412A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Temperature compensated magnetic transducer
Assignee: Physical Sciences Corp
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Filing: 1963-06-13
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Granted: 1967-03-07
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Expires: 1983-06-13
Abstract
No abstract record available.
Inventors
- 👤 Gerald R Curtis
- 👤 James C Kyle
- 👤 Robinson Glen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 07:32
CPC Classifications
G; G01; G01D; G01D5/00; G01D5/12; G01D5/14; G01D5/20; G01D5/22; G01D5/2208; G01D5/2216
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
140 words
AN ELECTROMAGENTIC TRANSDUCER HAVING STABLE CHARACTERISTICS WHEN EXPOSED TO VARIABLE RADIOACTIVE AND FLUCTUATING HIGH TEMPERATURE ENVIRONMENTS, THE TRANSDUCER COMPRISING: A TUBE MADE OF NON-MAGNETIC MATERIAL: AT LEAST ONE WINDING FORMED FROM AN ELONGATED MATERIAL COATED WITH A BORON-FREE CERAMIC DISPOSED ON THE TUBE AND HAVING A TEMPERATURE-RESISTANCE CHARACTERISTIC EFFECTIVELY IMMUNE TO VARIATIONS IN RADIOACTIVITY OVER AN EXTENDED RANGE OF TEMPERATURES TO APPROXIMATELY 1000*F.; A COATING A BORON-FREE CERAMIC ON THE PERIPHERAL SURFACE OF THE TUBE AND HAVING A TEMPERATURE-RESISTANCE CHARACTERISTIC EFFECTIVELY IMMUNE TO VARIATIONS IN RADIOACTIVITY OVER AN EXTENDED RANGE OF TEMPERATURES TO APPROXIMATELY 1000*F.; AND DISPOSED WITHIN THE TUBE, A CORE HAVING A TEMPERATUREPERMEABILITY CHARACTERISTIC COUNTERACTING THE EFFECT OF THE TEMPERATURE-RESISTANCE CHARACTERISTIC OF THE WINDING AND HAVING SUBSTANTIALLY CONSTANT MAGNETIC CHARACTERISTICS THROUGH AN EXTENDED RANGE OF TEMPERATURES TO APPROXIMATELY 1000*F. AND HAVING CHARACTERISTICS EFFECTIVELY IMMUNE TO VARIATIONS IN RADIOACTIVITY.
Claim 2
Dependent Claim
140 words
AN ELECTROMAGENTIC TRANSDUCER HAVING STABLE CHARACTERISTICS WHEN EXPOSED TO VARIABLE RADIOACTIVE AND FLUCTUATING HIGH TEMPERATURE ENVIRONMENTS, THE TRANSDUCER COMPRISING: A TUBE MADE OF NON-MAGNETIC MATERIAL: AT LEAST ONE WINDING FORMED FROM AN ELONGATED MATERIAL COATED WITH A BORON-FREE CERAMIC DISPOSED ON THE TUBE AND HAVING A TEMPERATURE-RESISTANCE CHARACTERISTIC EFFECTIVELY IMMUNE TO VARIATIONS IN RADIOACTIVITY OVER AN EXTENDED RANGE OF TEMPERATURES TO APPROXIMATELY 1000*F.; A COATING A BORON-FREE CERAMIC ON THE PERIPHERAL SURFACE OF THE TUBE AND HAVING A TEMPERATURE-RESISTANCE CHARACTERISTIC EFFECTIVELY IMMUNE TO VARIATIONS IN RADIOACTIVITY OVER AN EXTENDED RANGE OF TEMPERATURES TO APPROXIMATELY 1000*F.; AND DISPOSED WITHIN THE TUBE, A CORE HAVING A TEMPERATUREPERMEABILITY CHARACTERISTIC COUNTERACTING THE EFFECT OF THE TEMPERATURE-RESISTANCE CHARACTERISTIC OF THE WINDING AND HAVING SUBSTANTIALLY CONSTANT MAGNETIC CHARACTERISTICS THROUGH AN EXTENDED RANGE OF TEMPERATURES TO APPROXIMATELY 1000*F. AND HAVING CHARACTERISTICS EFFECTIVELY IMMUNE TO VARIATIONS IN RADIOACTIVITY.
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) | 1970-03-06 | 1970-09-05 | 1971-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-06 | 1974-09-05 | 1975-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-06 | 1978-09-05 | 1979-03-07 | $7700.00 | Window Closed / Lapsed |