US3403303A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrolytic device and electrode therefor
Assignee: Duracell Inc USA
•
Filing: 1965-12-13
•
Granted: 1968-09-24
•
Expires: 1985-12-13
Abstract
No abstract record available.
Inventors
- 👤 Gerhart P Klein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:51
CPC Classifications
H; H01; H01G; H01G9/00; H01G9/0029; H01G9/004; H01G9/04; H01G9/048; H01G9/052; H01G9/15; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49117
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2733389A
Cited
US2290339A
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US2283723A
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US2406345A
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US2582744A
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US2743400A
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US3139568A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-09-24 | 1972-03-25 | 1972-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-24 | 1976-03-25 | 1976-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-24 | 1980-03-25 | 1980-09-24 | $7700.00 | Window Closed / Lapsed |