US49603A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Improvement in water-ejectors
Assignee: —
•
Filing: —
•
Granted: 1865-08-29
•
Expires: 1882-08-29
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:27
CPC Classifications
F; F04; F04F; F04F5/00; F04F5/44; F04F5/46; F04F5/461
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) | 1868-08-28 | 1869-02-27 | 1869-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1872-08-28 | 1873-02-27 | 1873-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1876-08-28 | 1877-02-27 | 1877-08-29 | $7700.00 | Window Closed / Lapsed |