US3740272A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Battery in molded case and cover with electrolyte reservoir in cover common to all cells
Assignee: Robert Bosch GmbH
•
Filing: 1970-11-25
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Granted: 1973-06-19
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Expires: 1990-11-25
Abstract
Abstract Battery in molded case with electrolyte reservoir in cover common to all cells. From the bottom of the reservoir tubes project downward dipping below the predetermined level of the electrolyte in each cell. each tube is provided with a throttling device which can be shut-off tightly, and each cell is provided with a vent through which gas can escape during filling with electrolyte and during charge.
Inventors
- 👤 E Blaich
- 👤 G Niemann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 07:50
CPC Classifications
H; H01; H01M; H01M50/00; H01M50/60; H01M50/673; 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) | 1976-06-18 | 1976-12-18 | 1977-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-18 | 1980-12-18 | 1981-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-18 | 1984-12-18 | 1985-06-19 | $7700.00 | Window Closed / Lapsed |