US3373320A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solid aluminum capacitor with aluminum felt electrodes
Assignee: Duracell Inc USA
•
Filing: 1964-11-06
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Granted: 1968-03-12
•
Expires: 1984-11-06
Abstract
No abstract record available.
Inventors
- 👤 Richard H Krock
- 👤 Gerhart P Klein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 00:54
CPC Classifications
H; H01; H01G; H01G9/00; H01G9/004; H01G9/04; H01G9/048; H01G9/052; B; B22; B22F; B22F3/00; B22F3/002
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3166693A
Cited
US2277687A
Cited
US2278161A
Cited
US2299667A
Cited
US2616165A
Cited
US3196323A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-03-12 | 1971-09-11 | 1972-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-12 | 1975-09-11 | 1976-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-12 | 1979-09-11 | 1980-03-12 | $7700.00 | Window Closed / Lapsed |