US821624A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas-separator for storage batteries.
Assignee: EDISON STORAGE BATTERY CO
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Filing: 1904-11-02
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Granted: 1906-05-29
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Expires: 1924-11-02
Abstract
No abstract record available.
Inventors
- 👤 Thomas A Edison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:43
CPC Classifications
F; F16; F16K; F16K15/00; F16K15/02; F16K15/04; F16K15/06; F16K15/063; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7838; Y10T137/7842; Y10T137/7869; Y10T137/7871; Y10T137/7904; Y10T137/7908; Y10T137/7909; Y10T137/7913
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) | 1909-05-28 | 1909-11-27 | 1910-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1913-05-28 | 1913-11-27 | 1914-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1917-05-28 | 1917-11-27 | 1918-05-29 | $7700.00 | Window Closed / Lapsed |