US3100862A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sealed storage cells and charging circuits therefor
Assignee: Exide Technologies LLC
•
Filing: 1959-11-23
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Granted: 1963-08-13
•
Expires: 1979-11-23
Abstract
No abstract record available.
Inventors
- 👤 Donald W Collier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:51
CPC Classifications
H; H02; H02J; H02J7/00; H02J7/50; H02J7/575
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
105 words
A STORAGE BATTERY INCLUDING A PLURALITY OF SEPARATE HERMETICALLY SEALED CELLS OF THE TYPE WHICH EVOLVES A GAS WHEN OVERCHARGED AND OVERDISCHARGED; A PRESSURE SWITCH MOUNTED ON EACH OF SAID CELLS AND OPERABLE BY INTERNAL CELL PRESSURE FROM A NORMAL PORTION WHEN THE INTERNAL PRESSURE RISES TO AN ABOVE NORMAL VALUE; A LATCH ASSOCIATED WITH EACH OF SAID PRESSURE SWITCHES FOR LATCHING THE SWITCH WHEN THE SAME IS OPERATED FROM NORMAL POSITION; A PAIR OF TERMINALS FOR SAID BATTERY CONNECTED TO SAID CELLS THROUGH SAID PRESSURE SWITCHES ONLY WHEN THE SWITCHES ARE IN SAID NORMAL POSITION; AND A SINGLE RESET CONTROL ON SAID BATTERY OPERATIVELY
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-08-12 | 1967-02-11 | 1967-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-08-12 | 1971-02-11 | 1971-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-08-12 | 1975-02-11 | 1975-08-13 | $7700.00 | Window Closed / Lapsed |