US3235655A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resistor composition and devices embodying same
Assignee: Motors Liquidation Co
•
Filing: 1962-12-31
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Granted: 1966-02-15
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Expires: 1982-12-31
Abstract
No abstract record available.
Inventors
- 👤 Counts William Edward
- 👤 Robert W Smith
- 👤 Schwartzwalder Karl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:23
CPC Classifications
H; H01; H01T; H01T13/00; H01T13/40; H01T13/41
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
164 words
A RESISTOR COMPRISING THE COMBINATION OF A TUBULAR INSULATOR SLEEVE, A METAL CONDUCTING MEMBER POSITIONED IN SAID SLEEVE, A GLASS CONDUCTING SEAL OVERLYING SAID MEMBER AND HAVING A GAS-TIGHT BOND WITH SAID SLEEVE, A SEMICONDUCTOR OVERLYING SAID SEAL AND BEING BONDED THERETO AND TO SAID SLEEVE, A SECOND GLASS CONDUCTING SEAL OVERLYING SAID SEMICONDUCTOR AND BEING BONDED THERETO AND TO SAID SLEEVE, AND A SECOND METAL CONDUCTING MEMBER IN SAID SLEEVE HAVING A GOOD ELECTRICAL CONNECTION WITH SAID SECOND SEAL, SAID SEMICONDUCTOR BEING FORMED FROM A COMPOSITION CONSISTING ESSENTIALLY OF 5-40% GLASS, 35-90% SEMICONDUCTOR MATERIAL WHICH HAS BEEN FIRED TO SINTERING TEMPERATURE, 0-25% INERT FILLER, 0-3% BINDER AND 0.1-3% REDUCING AGENT, SAID SEMICONDUCTOR MATERIAL BEING SELECTED FROM THE BINARY METAL OXIDE SYSTEMS CONSISTING OF TIO2ZRO2, TA2O5-THO2, TA2O5-CEO2 AND TA2O5-DIO2 WHEREIN THE TIO2 AND ZRO2 IN SAID TITANIA SYSTEM ARE PRESENT IN AN AMOUNT OF ABOUT 0.5 TO 60% AND 40 TO 99.5% BY WEIGHT, RESPECTIVELY, AND THE TA2O5 AND THE OTHER METAL OXIDE IN
Claim 2
Dependent Claim
164 words
A RESISTOR COMPRISING THE COMBINATION OF A TUBULAR INSULATOR SLEEVE, A METAL CONDUCTING MEMBER POSITIONED IN SAID SLEEVE, A GLASS CONDUCTING SEAL OVERLYING SAID MEMBER AND HAVING A GAS-TIGHT BOND WITH SAID SLEEVE, A SEMICONDUCTOR OVERLYING SAID SEAL AND BEING BONDED THERETO AND TO SAID SLEEVE, A SECOND GLASS CONDUCTING SEAL OVERLYING SAID SEMICONDUCTOR AND BEING BONDED THERETO AND TO SAID SLEEVE, AND A SECOND METAL CONDUCTING MEMBER IN SAID SLEEVE HAVING A GOOD ELECTRICAL CONNECTION WITH SAID SECOND SEAL, SAID SEMICONDUCTOR BEING FORMED FROM A COMPOSITION CONSISTING ESSENTIALLY OF 5-40% GLASS, 35-90% SEMICONDUCTOR MATERIAL WHICH HAS BEEN FIRED TO SINTERING TEMPERATURE, 0-25% INERT FILLER, 0-3% BINDER AND 0.1-3% REDUCING AGENT, SAID SEMICONDUCTOR MATERIAL BEING SELECTED FROM THE BINARY METAL OXIDE SYSTEMS CONSISTING OF TIO2ZRO2, TA2O5-THO2, TA2O5-CEO2 AND TA2O5-DIO2 WHEREIN THE TIO2 AND ZRO2 IN SAID TITANIA SYSTEM ARE PRESENT IN AN AMOUNT OF ABOUT 0.5 TO 60% AND 40 TO 99.5% BY WEIGHT, RESPECTIVELY, AND THE TA2O5 AND THE OTHER METAL OXIDE IN
References Cited (Backward Citations)
US2459282A
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US2417461A
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US2669764A
Cited
US2864884A
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US2864773A
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US2962452A
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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) | 1969-02-14 | 1969-08-16 | 1970-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-14 | 1973-08-16 | 1974-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-14 | 1977-08-16 | 1978-02-15 | $7700.00 | Window Closed / Lapsed |