US3560266A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Battery safety filling device
Assignee: ESB Inc
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Filing: 1968-11-29
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Granted: 1971-02-02
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Expires: 1988-11-29
Abstract
Abstract AN AUTOMATIC, DUAL LEVEL, SATETY FILLING DEVICE IS INCORPORATED IN THE COVER OF A LEAD ACID BATTERY AND COMPRISES THREE OPENINGS IN THE COVER OVER EACH CELL AND ARE REFERRED TO AS THE WINTER HOLE, SUMMER HOLE, AND VENT HOLE RESPECTIVELY. A CLOSURE IS SLIDABLY ATTACHED TO THE COVER TO CLOSE THE WINTER AND SUMMER HOLES, OR THE SUMMER AND THE VENT HOLES, OR THE VNET HOLE ONLY. WHEN THE BATTERY NEEDS SERVICING, WATER OR ELECTROLYTIC SOLUTION IS POURED INTO THE UNCOVERED WINTER HOLE AND DEPENDING UPON WHETHER THE CLOSURE COVERS THE SUMMER HOLE AND THE VENT HOLE, OR THE VNET HOLE ONLY THE SOLUTION IN THE CELL RISES TO A "WINTER LEVEL" OR TO A "SUMMER LEVEL" RESPECTIVELY.
Inventors
- 👤 Eugene W Mossford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:47
CPC Classifications
H; H01; H01M; H01M50/00; H01M50/60; H01M50/609; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-01 | 1974-08-03 | 1975-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-01 | 1978-08-03 | 1979-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-01 | 1982-08-03 | 1983-02-02 | $7700.00 | Window Closed / Lapsed |