Patent US934689A successfully refreshed from Google Patents.
US934689A
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Windmill-governor.
Assignee: Individual
•
Filing: 1909-02-16
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Granted: 1909-09-21
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Expires: 1929-02-16
Abstract
No abstract record available.
Inventors
- 👤 Louis M Nelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 12:03
CPC Classifications
F; F03; F03D; F03D7/00; F16; F16C; F16C3/00; F16C3/04; F16C3/22; F16C3/28; F16H; F16H29/00; F16H29/02; F16H29/04; Y; Y02; Y02E; Y02E10/00; Y02E10/70; Y02E10/72; Y10; Y10T; Y10T74/00; Y10T74/21; Y10T74/2173; Y10T74/2179; Y10T74/218
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) | 1912-09-20 | 1913-03-22 | 1913-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1916-09-20 | 1917-03-22 | 1917-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1920-09-20 | 1921-03-22 | 1921-09-21 | $7700.00 | Window Closed / Lapsed |