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US47546A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Improvement in rotating stop-cocks
Assignee: —
•
Filing: —
•
Granted: 1865-05-02
•
Expires: 1882-05-02
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:56
CPC Classifications
G; G01; G01F; G01F11/00; G01F11/10; G01F11/12; G01F11/20; G01F11/24
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) | 1868-05-01 | 1868-10-31 | 1869-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1872-05-01 | 1872-10-31 | 1873-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1876-05-01 | 1876-10-31 | 1877-05-02 | $7700.00 | Window Closed / Lapsed |