US19383A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Improved method of furling the sails of wind-wheels
Assignee: —
•
Filing: —
•
Granted: 1858-02-16
•
Expires: 1875-02-16
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:03
CPC Classifications
F; F03; F03D; F03D3/00; B; B01; B01F; B01F27/00; B01F27/80; B01F27/91; Y; Y02; Y02E; Y02E10/00; Y02E10/20; Y02E10/70; Y02E10/74
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) | 1861-02-15 | 1861-08-17 | 1862-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1865-02-15 | 1865-08-17 | 1866-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1869-02-15 | 1869-08-17 | 1870-02-16 | $7700.00 | Window Closed / Lapsed |