US2579311A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wind-driven power generator
Assignee: Individual
•
Filing: 1949-07-07
•
Granted: 1951-12-18
•
Expires: 1969-07-07
Abstract
No abstract record available.
Inventors
- 👤 Fairey Charles Richard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:08
CPC Classifications
F; F03; F03D; F03D9/00; F03D9/20; F03D9/22; F03D9/25; G; G05; G05F; G05F1/00; G05F1/66; G05F1/67; F05; F05B; F05B2220/00; F05B2220/70; F05B2220/706; Y; Y02; Y02E; Y02E10/00; Y02E10/70; Y02E10/72
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-12-17 | 1955-06-18 | 1955-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-12-17 | 1959-06-18 | 1959-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-12-17 | 1963-06-18 | 1963-12-18 | $7700.00 | Window Closed / Lapsed |