US938966A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Windmill-power saver.
Assignee: Individual
•
Filing: 1909-02-06
•
Granted: 1909-11-02
•
Expires: 1929-02-06
Abstract
No abstract record available.
Inventors
- 👤 John R Byrnes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:06
CPC Classifications
F; F03; F03D; F03D9/00; F03D9/20; F03D9/28; F03D13/00; F03D13/20; F03D15/00; F03D15/10; F04; F04B; F04B47/00; F04B47/02; Y; Y02; Y02E; Y02E10/00; Y02E10/70; Y02E10/72; Y02E10/728; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18056; Y10T74/18176; Y10T74/18182
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) | 1912-11-01 | 1913-05-03 | 1913-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1916-11-01 | 1917-05-03 | 1917-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1920-11-01 | 1921-05-03 | 1921-11-02 | $7700.00 | Window Closed / Lapsed |