US3071638A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dendritic zinc electrodes
Assignee: Union Carbide Corp
•
Filing: 1959-06-25
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Granted: 1963-01-01
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Expires: 1979-06-25
Abstract
No abstract record available.
Inventors
- 👤 Milton B Clark
- 👤 George R Drengler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:41
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; C; C25; C25C; C25C5/00; C25C5/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
30 words
IN AN ALKALINE GALVANIC CELL, THE IMPROVEMENT WHICH CONSISTS OF AN ANODE CHARACTERIZED BY A HIGH SURFACE AREA, SAID ANODE COMPRISING COMPRESSED, FINELY DIVIDED, ELECTROCHEMICALLY DEPOSITED, AMALGAMATED, DENDRITIC ZINC PARTICLES.
Claim 2
Dependent Claim
30 words
IN AN ALKALINE GALVANIC CELL, THE IMPROVEMENT WHICH CONSISTS OF AN ANODE CHARACTERIZED BY A HIGH SURFACE AREA, SAID ANODE COMPRISING COMPRESSED, FINELY DIVIDED, ELECTROCHEMICALLY DEPOSITED, AMALGAMATED, DENDRITIC ZINC PARTICLES.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-31 | 1966-07-02 | 1967-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-31 | 1970-07-02 | 1971-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-31 | 1974-07-02 | 1975-01-01 | $7700.00 | Window Closed / Lapsed |