Patent US3221228A successfully refreshed from Google Patents.
US3221228A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ceramic capacitor and the method of making the same
Assignee: Cornell Dubilier Electronics Inc
•
Filing: 1961-09-15
•
Granted: 1965-11-30
•
Expires: 1981-09-15
Abstract
No abstract record available.
Inventors
- 👤 Carter Gerard
- 👤 Charles E Hodgkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:41
CPC Classifications
H; H01; H01G; H01G4/00; H01G4/002; H01G4/005; H01G4/008; Y; Y10; Y10T; Y10T29/00; Y10T29/43; Y10T29/435
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
46 words
AN ELECTRICAL COMPONENT OF HIGH DIELECTRIC CERAMIC MATERIAL COMPOSED PREDOMINANTLY OF ALKALINE EARTH TITANATE, AT LEAST TWO DISTINCT SURFACES OF WHICH ARE PROVIDED WITH ELECTRODES AT LEAST ONE OF WHICH CONSISTS ESSENTIALLY OF SILVER AND ABOUT 3 TO 30% OF SNO2, BY WEIGHT OF THE SILVER.
Claim 2
Dependent Claim
46 words
AN ELECTRICAL COMPONENT OF HIGH DIELECTRIC CERAMIC MATERIAL COMPOSED PREDOMINANTLY OF ALKALINE EARTH TITANATE, AT LEAST TWO DISTINCT SURFACES OF WHICH ARE PROVIDED WITH ELECTRODES AT LEAST ONE OF WHICH CONSISTS ESSENTIALLY OF SILVER AND ABOUT 3 TO 30% OF SNO2, BY WEIGHT OF THE SILVER.
Claim 3
Independent Claim
45 words
A METHOD COMPRISING FIRING ON AT LEAST ONE SURFACE OF A BODY OF HIGH DIELECTRIC CERAMIC MATERIAL COMPOSED PREDOMINANTLY OF REDUCED ALKALINE EARTH TITANATE A COMPOSITION CONTAINING AS ITS ESSENTIAL UNBURNABLE CONSTITUENTS SILVER AND ABOUT 3 TO 30% OF SNO BY WEIGHT OF THE SILVER.
Claim 4
Independent Claim
45 words
A METHOD COMPRISING FIRING ON AT LEAST ONE SURFACE OF A BODY OF HIGH DIELECTRIC CERAMIC MATERIAL COMPOSED PREDOMINANTLY OF REDUCED ALKALINE EARTH TITANATE A COMPOSITION CONTAINING AS ITS ESSENTIAL UNBURNABLE CONSTITUENTS SILVER AND ABOUT 3 TO 30% OF SNO BY WEIGHT OF THE SILVER.
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) | 1968-11-29 | 1969-05-31 | 1969-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-29 | 1973-05-31 | 1973-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-29 | 1977-05-31 | 1977-11-30 | $7700.00 | Window Closed / Lapsed |