US2470797A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aerogenerator
Assignee: Individual
•
Filing: 1946-04-19
•
Granted: 1949-05-24
•
Expires: 1966-04-19
Abstract
No abstract record available.
Inventors
- 👤 Percy H Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:36
CPC Classifications
F; F03; F03D; F03D7/00; F03D7/02; F03D7/0272; F03D9/00; F03D9/20; F03D9/25; F03D1/00; F03D1/02; F03D9/10; F03D9/11; F05; F05B; F05B2220/00; F05B2220/70; F05B2220/706; F05B2220/7062; Y; Y02; Y02E; Y02E10/00; Y02E10/70; Y02E10/72; Y10; Y10S; Y10S416/00; Y10S416/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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GB482329A
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US2148804A
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US2178679A
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US2284649A
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US2383669A
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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) | 1952-05-23 | 1952-11-22 | 1953-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-05-23 | 1956-11-22 | 1957-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-05-23 | 1960-11-22 | 1961-05-24 | $7700.00 | Window Closed / Lapsed |