US3694265A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sheath for lead-acid storage battery
Assignee: Tudor AB
•
Filing: 1970-04-14
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Granted: 1972-09-26
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Expires: 1990-04-14
Abstract
Abstract METHOD AND SHEATH FOR LEAD-ACID STORAGE BATTERY ELECTRODE COMPRISING A BRIAID OF GLASS FIBER THREADS BONDED BY STEM THREADS OF SUBSTANTIALLY UNTWISTED GLASS FIBERS AND HIGHLY TWISTED THERMOPLASTIC FIBERS. THE STEM THREADS OF GLASS FIBERS PROVIDE AXIAL STRENGTH SUFFICIENT TO ALLOW THE HEAT TREATING OF THE SHEATH WHILE UNDER TENSION EITHER IN A STATIONARY OR CONTINUOUS PROCESS.
Inventors
- 👤 Erik Gustav Sundberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 16:10
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/64; H01M4/70; H01M4/76; H01M4/765; D; D04; D04C; D04C1/00; D04C1/06; D10; D10B; D10B2101/00; D10B2101/02; D10B2101/06; D10B2401/00; D10B2401/04; D10B2401/041; D10B2401/06; D10B2401/062; D10B2401/10; D10B2403/00; D10B2403/02; D10B2403/024; D10B2403/0241; D10B2403/02411; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
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References Cited (Backward Citations)
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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) | 1975-09-26 | 1976-03-27 | 1976-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-26 | 1980-03-27 | 1980-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-26 | 1984-03-27 | 1984-09-26 | $7700.00 | Window Closed / Lapsed |