US3491269A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Construction for non-hermetic sealed solid electrolyte capacitor
Assignee: Duracell Inc USA
•
Filing: 1967-08-21
•
Granted: 1970-01-20
•
Expires: 1987-08-21
Abstract
No abstract record available.
Inventors
- 👤 James M Booe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:09
CPC Classifications
H; H01; H01G; H01G9/00; H01G9/15; H01G9/004; H01G9/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3297918A
Cited
US1764770A
Cited
US1845067A
Cited
US1830501A
Cited
US1800500A
Cited
US3036249A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-19 | 1973-07-21 | 1974-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-19 | 1977-07-21 | 1978-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-19 | 1981-07-21 | 1982-01-20 | $7700.00 | Window Closed / Lapsed |