US31618A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water-elevator
Assignee: —
•
Filing: —
•
Granted: 1861-03-05
•
Expires: 1878-03-05
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:18
CPC Classifications
B; B65; B65G; B65G1/00; B65G1/02; B65G1/04; B65G1/0407; A; A23; A23N; A23N1/00; A23N1/003
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) | 1864-03-04 | 1864-09-03 | 1865-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1868-03-04 | 1868-09-03 | 1869-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1872-03-04 | 1872-09-03 | 1873-03-05 | $7700.00 | Window Closed / Lapsed |