Patent US1675159A successfully refreshed from Google Patents.
US1675159A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic speed control for windmills
Assignee: Individual
•
Filing: 1926-06-16
•
Granted: 1928-06-26
•
Expires: 1946-06-16
Abstract
No abstract record available.
Inventors
- 👤 Frederick R Burch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 05:58
CPC Classifications
F; F03; F03D; F03D7/00; F03D7/02; F03D7/04; F03D7/041; F03D9/00; F03D9/20; F03D9/28; Y; Y02; Y02E; Y02E10/00; Y02E10/70; Y02E10/72; Y10; Y10T; Y10T74/00; Y10T74/16; Y10T74/1625; Y10T74/165
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1931-06-26 | 1931-12-26 | 1932-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1935-06-26 | 1935-12-26 | 1936-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1939-06-26 | 1939-12-26 | 1940-06-26 | $7700.00 | Window Closed / Lapsed |