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Patent US3493434A successfully refreshed from Google Patents.
US3493434A
Expired / Lapsed
US
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Zinc electrode
Assignee: Yardney International Corp
•
Filing: 1968-02-12
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Granted: 1970-02-03
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Expires: 1988-02-12
Abstract
No abstract record available.
Inventors
- 👤 Jerome Goodkin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:57
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1287676A
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US2189463A
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US3049578A
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US3003015A
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US3082278A
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US3060254A
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US3346421A
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US3293078A
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US3345213A
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US3348975A
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US3403057A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-02-02 | 1973-08-04 | 1974-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-02 | 1977-08-04 | 1978-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-02 | 1981-08-04 | 1982-02-03 | $7700.00 | Window Closed / Lapsed |