Patent US2453960A successfully refreshed from Google Patents.
US2453960A
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US
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Means for charging storage batteries
Assignee: ABB Norden Holding AB
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Filing: 1945-04-14
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Granted: 1948-11-16
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Expires: 1965-04-14
Abstract
No abstract record available.
Inventors
- 👤 Arvidsson Algot
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:19
CPC Classifications
H; H02; H02J; H02J7/00; H02J7/02; H02J7/04; H02J7/12; H02J7/90; H02J7/933; Y; Y10; Y10S; Y10S320/00; Y10S320/22; Y10S320/24; Y10S320/28
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US675158A
Cited
US1823780A
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US1934692A
Cited
US1897800A
Cited
US1916307A
Cited
US1967801A
Cited
FR775892A
Cited
US2082607A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-11-16 | 1952-05-17 | 1952-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-11-16 | 1956-05-17 | 1956-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-11-16 | 1960-05-17 | 1960-11-16 | $7700.00 | Window Closed / Lapsed |