US2399313A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the manufacture of electrical capacitors
Assignee: EIDP Inc
•
Filing: 1943-10-04
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Granted: 1946-04-30
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Expires: 1963-10-04
Abstract
No abstract record available.
Inventors
- 👤 Kermit H Ballard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:40
CPC Classifications
H; H01; H01G; H01G4/00; H01G4/30; Y; Y10; Y10S; Y10S264/00; Y10S264/57; Y10T; Y10T29/00; Y10T29/43; Y10T29/435
Claims Analysis
Total Claims: 0
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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) | 1949-04-29 | 1949-10-29 | 1950-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1953-04-29 | 1953-10-29 | 1954-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1957-04-29 | 1957-10-29 | 1958-04-30 | $7700.00 | Window Closed / Lapsed |