Patent US2963771A successfully refreshed from Google Patents.
US2963771A
Expired / Lapsed
US
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Methods of making electrical capacitors
Assignee: AT&T Inc
•
Filing: 1956-01-23
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Granted: 1960-12-13
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Expires: 1976-01-23
Abstract
No abstract record available.
Inventors
- 👤 Dale R Clemons
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:43
CPC Classifications
H; H01; H01G; H01G4/00; H01G4/002; H01G4/255; Y; Y10; Y10T; Y10T29/00; Y10T29/43; Y10T29/435
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
BE524323A
Cited
US1200063A
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US1548801A
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US1567068A
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US1774875A
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US2304667A
Cited
US2618749A
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GB742614A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-13 | 1964-06-13 | 1964-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-13 | 1968-06-13 | 1968-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-13 | 1972-06-13 | 1972-12-13 | $7700.00 | Window Closed / Lapsed |