US147532A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Improvement in steam or water gates
Assignee: —
•
Filing: —
•
Granted: 1874-02-17
•
Expires: 1891-02-17
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:56
CPC Classifications
F; F16; F16K; F16K5/00; F16K5/08; F16K5/14; F16K5/18; F16K5/184
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) | 1877-02-16 | 1877-08-18 | 1878-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1881-02-16 | 1881-08-18 | 1882-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1885-02-16 | 1885-08-18 | 1886-02-17 | $7700.00 | Window Closed / Lapsed |