Patent US3470024A successfully refreshed from Google Patents.
US3470024A
Expired / Lapsed
US
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Recombination systems for sealed batteries and batteries incorporating them
Assignee: Arthur D Little Inc
•
Filing: 1966-12-30
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Granted: 1969-09-30
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Expires: 1986-12-30
Abstract
No abstract record available.
Inventors
- 👤 James H B George
- 👤 Albert E Dennard
- 👤 Ekkehard L Kreidl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:35
CPC Classifications
H; H01; H01M; H01M10/00; H01M10/42; H01M10/52; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1694530A
Cited
GB303799A
Cited
GB339824A
Cited
US2911986A
Cited
US2879146A
Cited
US3000707A
Cited
US3038954A
Cited
US3287174A
Cited
US3355258A
Cited
US3356533A
Cited
US3348923A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-09-29 | 1973-03-31 | 1973-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-29 | 1977-03-31 | 1977-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-29 | 1981-03-31 | 1981-09-30 | $7700.00 | Window Closed / Lapsed |