US3090824A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Leak-resistant dry cell
Assignee: Union Carbide Corp
•
Filing: 1961-05-01
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Granted: 1963-05-21
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Expires: 1981-05-01
Abstract
No abstract record available.
Inventors
- 👤 Thomas A Reilly
- 👤 Johnson R Beckman
- 👤 Harry K Bishop
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:52
CPC Classifications
H; H01; H01M; H01M50/00; H01M50/10; H01M50/172; H01M50/174; H01M50/182; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
77 words
A LEAK-RESISTANT DRY CELL COMPRISING, IN COMBINATION, A CUP ELECTRODE OF A CONSUMABLE METAL CONTAINING DEPOLARIZER MIX, ELECTROLYTE AND A CENTRAL CARBON ELECTRODE EMBEDDED WITHIN SAID DEPOLARIZER MIX; A NON-METALLIC JACKET HAVING A LIQUID-PROOF LINER EMBRACING SAID CUP ELECTRODE; A METALLIC TOP CLOSURE AND BOTTOM PLATE LOCKED TO SAID JACKET, SAID TOP CLOSURE HAVING GAS VENTING MEANS THEREIN; AND AN ANNULAR SUBSTANTIALLY CUPPED SHAPED CAP BELOW SAID TOP CLOSURE FITTED OVER THE TOP OPEN END OF SAID
References Cited (Backward Citations)
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-05-20 | 1966-11-19 | 1967-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-20 | 1970-11-19 | 1971-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-20 | 1974-11-19 | 1975-05-21 | $7700.00 | Window Closed / Lapsed |