US3255049A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dry cell having gel on depolarizer surface
Assignee: Union Carbide Corp
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Filing: 1963-01-03
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Granted: 1966-06-07
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Expires: 1983-01-03
Abstract
No abstract record available.
Inventors
- 👤 Francis J L Wolfe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:44
CPC Classifications
H; H01; H01M; H01M6/00; H01M6/22; H01M6/04; H01M6/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
56 words
IN A DRY CELL COMPRISING AN ANODE AND A POROUS DEPOLARIZER MIX, THE IMPROVEMENT, WHEREBY SAID DRY CELL EXHIBITS IMPROVED SHELF AND SERVICE LIFE, WHICH COMPRISES A MIX-PENETRATING GELATINOUS SOLUTION IN CONTACT WITH AN EXPOSED SURFACE OF SAID DEPOLARIZING MIX, SAID MIX-PENETRATING GELATINOUS SOLUTION COMPRISING A GEL-FORMING COLLOID AND AT LEAST ONE LIQUID DISPERSION MEDIUM SELECTED
Claim 2
Dependent Claim
56 words
IN A DRY CELL COMPRISING AN ANODE AND A POROUS DEPOLARIZER MIX, THE IMPROVEMENT, WHEREBY SAID DRY CELL EXHIBITS IMPROVED SHELF AND SERVICE LIFE, WHICH COMPRISES A MIX-PENETRATING GELATINOUS SOLUTION IN CONTACT WITH AN EXPOSED SURFACE OF SAID DEPOLARIZING MIX, SAID MIX-PENETRATING GELATINOUS SOLUTION COMPRISING A GEL-FORMING COLLOID AND AT LEAST ONE LIQUID DISPERSION MEDIUM SELECTED
References Cited (Backward Citations)
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Cited
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Cited
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Cited
US2704780A
Cited
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Cited
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Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-06-06 | 1969-12-06 | 1970-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-06 | 1973-12-06 | 1974-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-06 | 1977-12-06 | 1978-06-07 | $7700.00 | Window Closed / Lapsed |