US3692586A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of battery plate manufacture utilizing ultrasonic vibrations
Assignee: Sparton Corp
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Filing: 1970-05-18
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Granted: 1972-09-19
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Expires: 1990-05-18
Abstract
Abstract THE METHOD OF IMPREGNATING SINTERED BATTERY PLATES OR PLAQUES WITH A SALT BATH SOLUTION WHICH, WHEN SUBJECTED TO ELECTRICAL CURRENT, FORMS AN ACITVE METAL ON THE BATTERY PLATE UTILIZING ULTRASONIC VIBRATIONS TO CREATE A CAVITATIONIMPLOSION CYCLE WITHIN THE PORES OF THE SINTERED PLATE WHICH AUGMENTS PENETRATION AND RETENTION OF THE SALT BATH SOLUTION WITHIN PLATE.
Inventors
- 👤 Roland H Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 07:52
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/24; H01M4/26; H01M4/28; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
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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) | 1975-09-19 | 1976-03-20 | 1976-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-19 | 1980-03-20 | 1980-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-19 | 1984-03-20 | 1984-09-19 | $7700.00 | Window Closed / Lapsed |