US192668A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Improvement in windmills
Assignee: —
•
Filing: —
•
Granted: 1877-07-03
•
Expires: 1894-07-03
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:22
CPC Classifications
F; F03; F03D; F03D1/00; F03D1/06; F03D1/065; F03D1/0675; B; B64; B64C; B64C27/00; B64C27/54; B64C27/58; B64C27/59; B64C27/615; F03D80/00; Y; Y02; Y02E; Y02E10/00; Y02E10/70; Y02E10/72
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) | 1880-07-02 | 1881-01-01 | 1881-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1884-07-02 | 1885-01-01 | 1885-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1888-07-02 | 1889-01-01 | 1889-07-03 | $7700.00 | Window Closed / Lapsed |