US149091A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Improvement in paddle-wheel mechanisms
Assignee: —
•
Filing: —
•
Granted: 1874-03-31
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Expires: 1891-03-31
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 04:51
CPC Classifications
B; B64; B64C; B64C29/00; B64C29/0008; B64C29/0016; B64C29/0033; Y; Y02; Y02E; Y02E10/00; Y02E10/20
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) | 1877-03-30 | 1877-09-29 | 1878-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1881-03-30 | 1881-09-29 | 1882-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1885-03-30 | 1885-09-29 | 1886-03-31 | $7700.00 | Window Closed / Lapsed |