US3002841A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dielectric materials
Assignee: Individual
•
Filing: 1960-03-16
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Granted: 1961-10-03
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Expires: 1980-03-16
Abstract
No abstract record available.
Inventors
- 👤 Goodman Gilbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:09
CPC Classifications
H; H01; H01G; H01G4/00; H01G4/002; H01G4/018; H01G4/06; H01G4/08; H01G4/12; H01G4/1209; H01G4/1254; C; C04; C04B; C04B35/00; C04B35/01; C04B35/495; H01B; H01B3/00; H01B3/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
A CERAMIC DIELECTRIC COMPOSITION HAVING A DIELECTRIC CONSTANT VARYING ONLY SLIGHTLY UP TO ABOUT 500*C., SAID COMPOSITION BEING COMPOSED ESSENTIALLY OF A VITRIFIED COMBINATION OF INGREDIENTS COMPOSED ESSENTIALLY OF (A) AN ALKALINE EARTH SELECTED FROM THE GROUP CONSISTING OF STRONTIUM OXIDE, BARIUM OXIDE, CALCIUM OXIDE, AND MIXTURES THEREOF, (B) A METALLIC OXIDE SELECTED FROM THE CLASS CONSISTING OF ZIRCONIUM OXIDE, TITANIUM OXIDE, TIN OXIDE, AND MIXTURES THEREOF, AND (C) TATALUM OXIDE, THE METALS OF THE OXIDES OF (A) AND (B) BEING PRESENT IN SUCH MOLAR RATIOS THAT THE TOTAL MOLAR CONCENTRATION OF SAID METALS RANGES FROM 0.75 TO 1.50 OF THE MOLAR CONCENTRATION OF TANTALUM IN SAID TANTALUM OXIDE.
Claim 2
Dependent Claim
109 words
A CERAMIC DIELECTRIC COMPOSITION HAVING A DIELECTRIC CONSTANT VARYING ONLY SLIGHTLY UP TO ABOUT 500*C., SAID COMPOSITION BEING COMPOSED ESSENTIALLY OF A VITRIFIED COMBINATION OF INGREDIENTS COMPOSED ESSENTIALLY OF (A) AN ALKALINE EARTH SELECTED FROM THE GROUP CONSISTING OF STRONTIUM OXIDE, BARIUM OXIDE, CALCIUM OXIDE, AND MIXTURES THEREOF, (B) A METALLIC OXIDE SELECTED FROM THE CLASS CONSISTING OF ZIRCONIUM OXIDE, TITANIUM OXIDE, TIN OXIDE, AND MIXTURES THEREOF, AND (C) TATALUM OXIDE, THE METALS OF THE OXIDES OF (A) AND (B) BEING PRESENT IN SUCH MOLAR RATIOS THAT THE TOTAL MOLAR CONCENTRATION OF SAID METALS RANGES FROM 0.75 TO 1.50 OF THE MOLAR CONCENTRATION OF TANTALUM IN SAID TANTALUM OXIDE.
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) | 1964-10-02 | 1965-04-03 | 1965-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-10-02 | 1969-04-03 | 1969-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-10-02 | 1973-04-03 | 1973-10-03 | $7700.00 | Window Closed / Lapsed |