US2864773A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Semi-conductor composition
Assignee: Motors Liquidation Co
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Filing: 1954-01-26
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Granted: 1958-12-16
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Expires: 1974-01-26
Abstract
No abstract record available.
Inventors
- 👤 William E Counts
- 👤 Robert W Smith
- 👤 Schwartzwalder Karl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:12
CPC Classifications
H; H01; H01T; H01T13/00; H01T13/52; C; C04; C04B; C04B35/00; C04B35/01; C04B35/46; C04B35/462; C04B35/478; H01B; H01B1/00; H01C; H01C17/00; H01C17/06; H01C17/065; H01C17/06506; H01C17/06573; H01C17/0658; H01C7/00; H01C7/003; H01T13/20; H01T13/34
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
A CERAMIC COMPOSITION EXHIBITING STABLE ELECTRICAL PROPERTIES CONSISTING ESSENTIALLY OF A SUBSTANTIALLY ELECTRICALLY STABLE MIXED METAL OXIDE SEMI-CONDUCTOR MATERIAL IN ADMIXTURE WITH GLASS AND A REACTING AGENT WHICH LATTER CONSTITUENT CONTROLS THE RESISTANCE OF THE COMPOSITION AND IS PRESENT IN SUCH SMALL AMOUNT AS TO ACT AS A DISCONTINUOUS REDUCER PHASE, SAID SEMICONDUCTOR MATERIAL CONSISTING ESSENTIALLY OF 15-60 PARTS OF TIO2, 0-50 PARTS OF SNO2, UP TO 15 PARTS OF TA2O5, 3-10 PARTS OF M0O3 AND 20-40 PARTS OF AL2O3.
Claim 2
Dependent Claim
80 words
A CERAMIC COMPOSITION EXHIBITING STABLE ELECTRICAL PROPERTIES CONSISTING ESSENTIALLY OF A SUBSTANTIALLY ELECTRICALLY STABLE MIXED METAL OXIDE SEMI-CONDUCTOR MATERIAL IN ADMIXTURE WITH GLASS AND A REACTING AGENT WHICH LATTER CONSTITUENT CONTROLS THE RESISTANCE OF THE COMPOSITION AND IS PRESENT IN SUCH SMALL AMOUNT AS TO ACT AS A DISCONTINUOUS REDUCER PHASE, SAID SEMICONDUCTOR MATERIAL CONSISTING ESSENTIALLY OF 15-60 PARTS OF TIO2, 0-50 PARTS OF SNO2, UP TO 15 PARTS OF TA2O5, 3-10 PARTS OF M0O3 AND 20-40 PARTS OF AL2O3.
References Cited (Backward Citations)
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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) | 1961-12-15 | 1962-06-16 | 1962-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-15 | 1966-06-16 | 1966-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-15 | 1970-06-16 | 1970-12-16 | $7700.00 | Window Closed / Lapsed |