US2658097A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of positive plates for lead storage batteries
Assignee: NL Industries Inc
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Filing: 1952-06-07
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Granted: 1953-11-03
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Expires: 1972-06-07
Abstract
No abstract record available.
Inventors
- 👤 Joseph A Orsino
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:14
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/14; H01M4/16; H01M4/22; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
A METHOD OF MANUFACTURE OF POSITIVE PLATES FOR LEAD-ACID STORAGE BATTERIES WHICH COMPRISES APPLYING AN OXIDIZING SOLUTION TO THE PREPARED PLATES, SAID OXIDIZING SOLUTION COMPRISING AN AQUEOUS SOLUTION OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF ALKALI METAL PEROXIDES, HYDROGEN PEROXIDE AND ALKALINE HYDROGEN PEROXIDE, SO AS TO FORM A THIN DEPOSIT OF LEAD PEROXIDE ON THE SURFACE OF THE ACTIVE MATERIAL IN SAID PLATES, WHEREBY THE POSITIVE PLATES MAY BE COMPLETELY AND RAPIDLY FORMED IN A BATTERY FORMATION ELECTROLYTE OF HIGH SPECIFIC GRAVITY.
Claim 2
Independent Claim
85 words
A METHOD OF MANUFACTURE OF POSITIVE PLATES FOR LEAD-ACID STORAGE BATTERIES WHICH COMPRISES APPLYING AN OXIDIZING SOLUTION TO THE PREPARED PLATES, SAID OXIDIZING SOLUTION COMPRISING AN AQUEOUS SOLUTION OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF ALKALI METAL PEROXIDES, HYDROGEN PEROXIDE AND ALKALINE HYDROGEN PEROXIDE, SO AS TO FORM A THIN DEPOSIT OF LEAD PEROXIDE ON THE SURFACE OF THE ACTIVE MATERIAL IN SAID PLATES, WHEREBY THE POSITIVE PLATES MAY BE COMPLETELY AND RAPIDLY FORMED IN A BATTERY FORMATION ELECTROLYTE OF HIGH SPECIFIC GRAVITY.
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) | 1956-11-02 | 1957-05-04 | 1957-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-02 | 1961-05-04 | 1961-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-02 | 1965-05-04 | 1965-11-03 | $7700.00 | Window Closed / Lapsed |