Patent US1992151A successfully refreshed from Google Patents.
US1992151A
Expired / Lapsed
US
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Nonspillable vent plug
Assignee: Exide Technologies LLC
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Filing: 1930-11-21
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Granted: 1935-02-19
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Expires: 1950-11-21
Abstract
No abstract record available.
Inventors
- 👤 Woodbridge Joseph Lester
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:15
CPC Classifications
H; H01; H01M; H01M50/00; H01M50/30; H01M50/308; H01M50/60; H01M50/609; H01M50/627; H01M50/636; H01M50/645; H01M50/655; H01M50/668; Y; Y02; Y02E; Y02E60/00; Y02E60/10; Y10; Y10S; Y10S220/00; Y10S220/27; Y10T; Y10T137/00; Y10T137/0753; Y10T137/0874
Claims Analysis
Total Claims: 0
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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) | 1938-02-18 | 1938-08-20 | 1939-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1942-02-18 | 1942-08-20 | 1943-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1946-02-18 | 1946-08-20 | 1947-02-19 | $7700.00 | Window Closed / Lapsed |