Patent US3084207A successfully refreshed from Google Patents.
US3084207A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Storage battery and method of forming the same
Assignee: HUGHES
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Filing: 1961-06-29
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Granted: 1963-04-02
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Expires: 1981-06-29
Abstract
No abstract record available.
Inventors
- 👤 Hughes James Willis
- 👤 Nathan J Stowell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:51
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/14; H01M4/16; H01M4/20; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
147 words
IN A PROCESS OF FORMING A STORAGE BATTERY OF THE PASTED LEAD PLATE TYPE WHEREIN POSITIVE AND NEGATIVE PLATES ARE EMPLOYED, WHICH COMPRISES A GRID OF LEAD OR LEAD ALLOY HAVING A PASTE THEREON COMPRISING ESSENTIALLY LEAD OXIDE AND AN ELECTROLYTE COMPRISING PRINCIPALLY SULPHURIC ACID, WHICH PLATES WHEN CHARGED AND IMMERSED IN THE SULPHURIC ACID ARE ELECTRICALLY CHARGED IN A CONVENTIONAL MANNER, THE IMPROVEMENT WHICH COMPRISES TREATING THE POSITIVE PASTED PLATES PRIOR TO ASSEMBLY AND CHARGING WITH SO2 GAS UNDER SUPERATMOSPHERIC PRESSURE OF FROM 4 TO 15 POUNDS PER SQUARE INCH UNTIL THE COLOR OF THE PASTE TURNS TO A LIGHT GRAY, INDICATING THE PRESENCE OF SULPHITE, AND TREATING THE NEGATIVE PLATES PRIOR TO CHARGING WITH A SOLUTION OF H2O2 UNTIL OXIDATION BEGINS TO APPEAR BETWEEN THE GRIDS AND THE PASTE OF THE PLATE, AND THEREAFTER ASSEMBLING THE PLATES IN AN ACID ELECTROLYTE AND CHARGING THE PLATES.
Claim 2
Dependent Claim
147 words
IN A PROCESS OF FORMING A STORAGE BATTERY OF THE PASTED LEAD PLATE TYPE WHEREIN POSITIVE AND NEGATIVE PLATES ARE EMPLOYED, WHICH COMPRISES A GRID OF LEAD OR LEAD ALLOY HAVING A PASTE THEREON COMPRISING ESSENTIALLY LEAD OXIDE AND AN ELECTROLYTE COMPRISING PRINCIPALLY SULPHURIC ACID, WHICH PLATES WHEN CHARGED AND IMMERSED IN THE SULPHURIC ACID ARE ELECTRICALLY CHARGED IN A CONVENTIONAL MANNER, THE IMPROVEMENT WHICH COMPRISES TREATING THE POSITIVE PASTED PLATES PRIOR TO ASSEMBLY AND CHARGING WITH SO2 GAS UNDER SUPERATMOSPHERIC PRESSURE OF FROM 4 TO 15 POUNDS PER SQUARE INCH UNTIL THE COLOR OF THE PASTE TURNS TO A LIGHT GRAY, INDICATING THE PRESENCE OF SULPHITE, AND TREATING THE NEGATIVE PLATES PRIOR TO CHARGING WITH A SOLUTION OF H2O2 UNTIL OXIDATION BEGINS TO APPEAR BETWEEN THE GRIDS AND THE PASTE OF THE PLATE, AND THEREAFTER ASSEMBLING THE PLATES IN AN ACID ELECTROLYTE AND CHARGING THE PLATES.
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) | 1966-04-01 | 1966-10-01 | 1967-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-01 | 1970-10-01 | 1971-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-01 | 1974-10-01 | 1975-04-02 | $7700.00 | Window Closed / Lapsed |