Patent US4212499A successfully refreshed from Google Patents.
Patent US3280448A successfully refreshed from Google Patents.
US3280448A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for fabricating miniature capacitors
Assignee: Zenith Electronics LLC
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Filing: 1961-11-02
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Granted: 1966-10-25
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Expires: 1981-11-02
Abstract
No abstract record available.
Inventors
- 👤 Edwin J Brajer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 02:20
CPC Classifications
H; H01; H01G; H01G4/00; H01G4/002; H01G4/258; H01G4/018; H01G4/06; H01G4/08; H01G4/12; H01G4/1209; H01G4/1236; H01G4/1245; Y; Y10; Y10T; Y10T29/00; Y10T29/43; Y10T29/435; Y10T29/49; Y10T29/49002; Y10T29/49082; Y10T29/49099
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
A METHOD OF MANUFACTURING A CERAMIC CAPACITOR HAVING OPTIMIZED BREAKDOWN VOLTAGE PROPERTIES INCLUDING THE FOLLOWING STEPS: COATING A BASE SHEET WITH A FIRST COAT OF LIQUID DIELECTRIC MATERIAL; PARTIALLY DRYING SAID FIRST COAT OF LIQUID DIELECTRIC MATERIAL; THEREAFTER APPLYING A SECOND COAT OF LIQUID DIELECTRIC MATERIAL OVER SAID PARTIALLY DRIED FIRST COAT; CONCURRENTLY FIRING SAID FIRST AND SECOND COATS OF LIQUID DIELECTRIC MATERIAL TO CERAMIC MATURITY TO CONSTITUTE A UNITARY CERAMIC DIELECTRIC LAYER SUBSTANTIALLY FREE OF PINHOLES; AD
Claim 2
Independent Claim
78 words
A METHOD OF MANUFACTURING A CERAMIC CAPACITOR HAVING OPTIMIZED BREAKDOWN VOLTAGE PROPERTIES INCLUDING THE FOLLOWING STEPS: COATING A BASE SHEET WITH A FIRST COAT OF LIQUID DIELECTRIC MATERIAL; PARTIALLY DRYING SAID FIRST COAT OF LIQUID DIELECTRIC MATERIAL; THEREAFTER APPLYING A SECOND COAT OF LIQUID DIELECTRIC MATERIAL OVER SAID PARTIALLY DRIED FIRST COAT; CONCURRENTLY FIRING SAID FIRST AND SECOND COATS OF LIQUID DIELECTRIC MATERIAL TO CERAMIC MATURITY TO CONSTITUTE A UNITARY CERAMIC DIELECTRIC LAYER SUBSTANTIALLY FREE OF PINHOLES; AD
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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) | 1969-10-24 | 1970-04-25 | 1970-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-24 | 1974-04-25 | 1974-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-24 | 1978-04-25 | 1978-10-25 | $7700.00 | Window Closed / Lapsed |