US2887522A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Storage battery and method of making same
Assignee: Motors Liquidation Co
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Filing: 1957-01-18
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Granted: 1959-05-19
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Expires: 1977-01-18
Abstract
No abstract record available.
Inventors
- 👤 Robert P Mackenzie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 06:02
CPC Classifications
H; H01; H01M; H01M10/00; H01M10/06; H01M10/12; H01M10/128; H01M50/00; H01M50/40; H01M50/409; H01M50/411; H01M50/414; H01M50/429; Y; Y02; Y02E; Y02E60/00; Y02E60/10; Y02P; Y02P70/00; Y02P70/50; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49108
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
IN A METHOD FOR MAKING DRY CHARGED STORAGE BATTERIES, THE STEPS COMPRISING ASSEMBLING CELL GROUPS INCLUDING NEGATIVE AND POSITIVE PLATES SEPARATED BY SEPARATORS TAKEN FROM THE CLASS CONSISTING OF PAPER AND PLASTICS WHICH SEPARATORS HAVE BEEN PREVIOUSLY TREATED WITH A WETTING AGENT, CHARGING AND FORMING HE CELL GROUPS IN BATTERY ACID, REMOVING THE BATTERY ACID FROM THE CELL GROUPS, WASHING THE CELL GROUPS FREE FROM ACID, TREATING THE WET, CHARGED AND FORMED CELL GROUPS WITH A WETTING AGENT THAT IS NOT DELETERIOUSLY AFFECTED BY THE HEAT OF THE SUBSEQUENT DRYING STEP, DRYING THE CELL GROUPS UNDER CONTROLLED CONDITIONS OF TEMPERATURE AND IN A SUBSTANTIALLY NONOXSIDIZING ATMOSPHERE, AND FINALLY ASSEMBLING THE DRIED AND CHARGED CELL GROUPS IN BATTERY CASES WHEREBY FULLY CHARGED, READY-TO-USE BATTERIES ARE AVAILABLE UPON SUBSEQUENT ADDITION OF BATTERY ACID THERETO.
Claim 2
Dependent Claim
132 words
IN A METHOD FOR MAKING DRY CHARGED STORAGE BATTERIES, THE STEPS COMPRISING ASSEMBLING CELL GROUPS INCLUDING NEGATIVE AND POSITIVE PLATES SEPARATED BY SEPARATORS TAKEN FROM THE CLASS CONSISTING OF PAPER AND PLASTICS WHICH SEPARATORS HAVE BEEN PREVIOUSLY TREATED WITH A WETTING AGENT, CHARGING AND FORMING HE CELL GROUPS IN BATTERY ACID, REMOVING THE BATTERY ACID FROM THE CELL GROUPS, WASHING THE CELL GROUPS FREE FROM ACID, TREATING THE WET, CHARGED AND FORMED CELL GROUPS WITH A WETTING AGENT THAT IS NOT DELETERIOUSLY AFFECTED BY THE HEAT OF THE SUBSEQUENT DRYING STEP, DRYING THE CELL GROUPS UNDER CONTROLLED CONDITIONS OF TEMPERATURE AND IN A SUBSTANTIALLY NONOXSIDIZING ATMOSPHERE, AND FINALLY ASSEMBLING THE DRIED AND CHARGED CELL GROUPS IN BATTERY CASES WHEREBY FULLY CHARGED, READY-TO-USE BATTERIES ARE AVAILABLE UPON SUBSEQUENT ADDITION OF BATTERY ACID THERETO.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-05-18 | 1962-11-17 | 1963-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-18 | 1966-11-17 | 1967-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-18 | 1970-11-17 | 1971-05-19 | $7700.00 | Window Closed / Lapsed |