US3033907A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Substitution type tio2 semi-conductors
Assignee: Erie Resistor Corp
•
Filing: 1957-05-20
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Granted: 1962-05-08
•
Expires: 1977-05-20
Abstract
No abstract record available.
Inventors
- 👤 Charles V Rue
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 00:34
CPC Classifications
H; H01; H01B; H01B1/00; H01B1/06; H01B1/08; H10; H10N; H10N10/00; H10N10/80; H10N10/85; H10N10/851; H10N10/855
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
A HIGH TEMPERATURE FIRED SEMI-CONDUCTOR CERAMIC BODY CONSISTING ESSENTIALLY OF A HOST LATTICE OF TIO2 INTO WHICH IS INTRODUCED A PERCENTAGE OF PENTAVALENT IONS SELECTED FROM THE GROUP CONSISTING OF NB, TA, SB IN A MOL PERCENTAGE RANGE FROM .25 TO 5% OF THE TIO2, SAID BODY BEING FIRED AT ABOUT 1200*-1500* C. AND QUENCHED FROM A TEMPERATURE IN THE REGION OF ITS FIRING TEMPERATURE AND CHARACTERIZED BY A REDUCTION IN RESISTANCE OF SEVERAL DECADES IN MAGNITUDE AS COMPARED TO UNQUENCHED BODIES OF THE SAME COMPOSITION AND BEING FURTHER CHARACTERIZED BY A THERMO-ELECTRIC FORCE WHICH IS RELATIVELY SLIGHTLY DECREASED AS COMPARED TO SAID DECREASE IN RESISTANCE SO THAT THE THERMOELECTRIC POWER OUTPUT OBTAINED IS MUCH GREATTER FOR THE QUENCHED BODIES.
Claim 2
Dependent Claim
120 words
A HIGH TEMPERATURE FIRED SEMI-CONDUCTOR CERAMIC BODY CONSISTING ESSENTIALLY OF A HOST LATTICE OF TIO2 INTO WHICH IS INTRODUCED A PERCENTAGE OF PENTAVALENT IONS SELECTED FROM THE GROUP CONSISTING OF NB, TA, SB IN A MOL PERCENTAGE RANGE FROM .25 TO 5% OF THE TIO2, SAID BODY BEING FIRED AT ABOUT 1200*-1500* C. AND QUENCHED FROM A TEMPERATURE IN THE REGION OF ITS FIRING TEMPERATURE AND CHARACTERIZED BY A REDUCTION IN RESISTANCE OF SEVERAL DECADES IN MAGNITUDE AS COMPARED TO UNQUENCHED BODIES OF THE SAME COMPOSITION AND BEING FURTHER CHARACTERIZED BY A THERMO-ELECTRIC FORCE WHICH IS RELATIVELY SLIGHTLY DECREASED AS COMPARED TO SAID DECREASE IN RESISTANCE SO THAT THE THERMOELECTRIC POWER OUTPUT OBTAINED IS MUCH GREATTER FOR THE QUENCHED BODIES.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-05-07 | 1965-11-06 | 1966-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-05-07 | 1969-11-06 | 1970-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-05-07 | 1973-11-06 | 1974-05-08 | $7700.00 | Window Closed / Lapsed |