US810237A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means for controlling the level of liquids.
Assignee: WILLIAM B WADSWORTH
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Filing: 1905-05-06
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Granted: 1906-01-16
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Expires: 1925-05-06
Abstract
No abstract record available.
Inventors
- 👤 Willard Wadsworth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 03:13
CPC Classifications
F; F04; F04B; F04B49/00; F04B49/04; Y; Y10; Y10T; Y10T137/00; Y10T137/7287; Y10T137/7358; Y10T137/7368; Y10T137/7371
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) | 1909-01-15 | 1909-07-17 | 1910-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1913-01-15 | 1913-07-17 | 1914-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1917-01-15 | 1917-07-17 | 1918-01-16 | $7700.00 | Window Closed / Lapsed |