US3531328A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Light metal-copper chloride organic electrolyte cell
Assignee: Duracell Inc USA
•
Filing: 1968-11-13
•
Granted: 1970-09-29
•
Expires: 1988-11-13
Abstract
No abstract record available.
Inventors
- 👤 Per Bro
- 👤 Arabinda N Dey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:26
CPC Classifications
H; H01; H01M; H01M6/00; H01M6/14; H01M6/16; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2913511A
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US2861116A
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US3043896A
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US3185590A
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US3376168A
Cited
US3324068A
Cited
US3279952A
Cited
US3393093A
Cited
US3393092A
Cited
US3415687A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-09-28 | 1974-03-30 | 1974-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-28 | 1978-03-30 | 1978-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-28 | 1982-03-30 | 1982-09-29 | $7700.00 | Window Closed / Lapsed |