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Patent US3421945A successfully refreshed from Google Patents.
US3421945A
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US
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Fusion-sealed metal-enclosed rechargeable battery cell
Assignee: Sonotone Corp
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Filing: 1965-08-11
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Granted: 1969-01-14
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Expires: 1985-08-11
Abstract
No abstract record available.
Inventors
- 👤 Ignatius Michalko
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:55
CPC Classifications
H; H01; H01M; H01M50/00; H01M50/10; H01M50/183; H01M50/186; H01M50/19; H01M50/191; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2508354A
Cited
US3049792A
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US3142886A
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US3083249A
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US3167418A
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US3064065A
Cited
US3192497A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-01-14 | 1972-07-15 | 1973-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-14 | 1976-07-15 | 1977-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-14 | 1980-07-15 | 1981-01-14 | $7700.00 | Window Closed / Lapsed |