Patent US5005945A successfully refreshed from Google Patents.
Patent US3153179A successfully refreshed from Google Patents.
US3153179A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ceramic capacitor dielectrics
Assignee: Clevite Corp
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Filing: 1962-08-17
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Granted: 1964-10-13
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Expires: 1982-08-17
Abstract
No abstract record available.
Inventors
- 👤 Koenig John
- 👤 Jaffe Bernard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:11
CPC Classifications
C; C04; C04B; C04B35/00; C04B35/01; C04B35/48; C04B35/486
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
86 words
A DIELECTRIC CERAMIC COMPOSITION CONSISTING ESSENTIALLY OF ZIRCONIUM, OXYGEN AND BARIUM COMBINED IN SUBSTATIALLY STOICHIOMETRIC PROPORTIONS CORRESPONDING TO BARIUM ZIRCONATE, BAZRO3, AND MODIFIED BY SUBSTITUTION OF RELATIVELY SAMLL QUANTITES OF AT LEAST ONE OTHER ELEMENT FOR AT LEAST ONE OF THE ELEMENTS BARIUM AND ZIRCONIUM, ELEMENTS SUBSTITUTED FOR BARIUM BEING SELECTED FROM THE GROUP CONSISTING OF THE RARE EARTHS AND, FOR ZIRCONIUM FROM THE GROUP CONSISTING OF NIOBIUM AND TANTALUM, THE AGGREGATE QUANTITY OF SUBSTITUTED ELEMENTS BEING IN THE RANGE OF 0.5 TO 10 ATOM PERCENT.
Claim 2
Dependent Claim
86 words
A DIELECTRIC CERAMIC COMPOSITION CONSISTING ESSENTIALLY OF ZIRCONIUM, OXYGEN AND BARIUM COMBINED IN SUBSTATIALLY STOICHIOMETRIC PROPORTIONS CORRESPONDING TO BARIUM ZIRCONATE, BAZRO3, AND MODIFIED BY SUBSTITUTION OF RELATIVELY SAMLL QUANTITES OF AT LEAST ONE OTHER ELEMENT FOR AT LEAST ONE OF THE ELEMENTS BARIUM AND ZIRCONIUM, ELEMENTS SUBSTITUTED FOR BARIUM BEING SELECTED FROM THE GROUP CONSISTING OF THE RARE EARTHS AND, FOR ZIRCONIUM FROM THE GROUP CONSISTING OF NIOBIUM AND TANTALUM, THE AGGREGATE QUANTITY OF SUBSTITUTED ELEMENTS BEING IN THE RANGE OF 0.5 TO 10 ATOM PERCENT.
Claim 3
Dependent Claim
36 words
A HIGH TEMPERATURE CERAMIC CAPACITOR COMPRISING SPACED ELECTRODE MEANS HAVING INTERPOSED THEREBETWEEN A DIELECTRIC CERAMIC MATERIAL CONSISTING ESSENTIALLY OF BARIUM ZIRCONATE MODIFIED BY SUBSTITUTION OF NIOBIUM FOR 2 TO 6 ATOM PERCENT OF THE ZIRCONIUM CONTENT.
Claim 4
Dependent Claim
36 words
A HIGH TEMPERATURE CERAMIC CAPACITOR COMPRISING SPACED ELECTRODE MEANS HAVING INTERPOSED THEREBETWEEN A DIELECTRIC CERAMIC MATERIAL CONSISTING ESSENTIALLY OF BARIUM ZIRCONATE MODIFIED BY SUBSTITUTION OF NIOBIUM FOR 2 TO 6 ATOM PERCENT OF THE ZIRCONIUM CONTENT.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-10-13 | 1968-04-13 | 1968-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-10-13 | 1972-04-13 | 1972-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-10-13 | 1976-04-13 | 1976-10-13 | $7700.00 | Window Closed / Lapsed |