US208254A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Improvement in windmills
Assignee: —
•
Filing: —
•
Granted: 1878-09-24
•
Expires: 1895-09-24
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:29
CPC Classifications
F; F03; F03D; F03D7/00; F03D7/02; F03D7/0204; F03D7/0208; F03D7/0216; F03D7/0212; F03D80/00; Y; Y02; Y02E; Y02E10/00; Y02E10/70; Y02E10/72; Y10; Y10T; Y10T403/00; Y10T403/32; Y10T403/32975; Y10T403/32983; Y10T74/00; Y10T74/21; Y10T74/2142
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) | 1881-09-23 | 1882-03-25 | 1882-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1885-09-23 | 1886-03-25 | 1886-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1889-09-23 | 1890-03-25 | 1890-09-24 | $7700.00 | Window Closed / Lapsed |