Patent US2872500A successfully refreshed from Google Patents.
US2872500A
Expired / Lapsed
US
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Storage battery non-overfill device
Assignee: Motors Liquidation Co
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Filing: 1955-04-25
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Granted: 1959-02-03
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Expires: 1975-04-25
Abstract
No abstract record available.
Inventors
- 👤 Garth A Rowls
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:01
CPC Classifications
F; F16; F16K; F16K24/00; F16K24/04; H; H01; H01M; H01M50/00; H01M50/30; H01M50/308; H01M50/60; H01M50/609; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US812451A
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US1717573A
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US2240461A
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US2276091A
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US2298789A
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US2271129A
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US2584946A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-02-02 | 1962-08-04 | 1963-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-02 | 1966-08-04 | 1967-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-02 | 1970-08-04 | 1971-02-03 | $7700.00 | Window Closed / Lapsed |