US2666149A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric generator with variable propeller and governing means therefor
Assignee: Individual
•
Filing: 1947-05-01
•
Granted: 1954-01-12
•
Expires: 1967-05-01
Abstract
No abstract record available.
Inventors
- 👤 Fumagalli Charles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 01:15
CPC Classifications
F; F03; F03D; F03D7/00; F03D7/02; F03D7/04; F03D7/041; F03D7/022; F03D7/0224; F05; F05B; F05B2220/00; F05B2220/70; F05B2220/706; F05B2260/00; F05B2260/70; F05B2260/74; F05B2260/76; F05B2260/78; Y; Y02; Y02E; Y02E10/00; Y02E10/70; Y02E10/72
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2179962A
Cited
US878022A
Cited
US910899A
Cited
US1792241A
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US1952800A
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US1980249A
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US1980847A
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US1982170A
Cited
FR791526A
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US2117674A
Cited
GB512057A
Cited
US2278247A
Cited
FR878544A
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US2360791A
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US2360792A
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US2363850A
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US2494209A
Cited
US2470797A
Cited
US2547636A
Cited
US2583369A
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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) | 1957-01-11 | 1957-07-13 | 1958-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-01-11 | 1961-07-13 | 1962-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-01-11 | 1965-07-13 | 1966-01-12 | $7700.00 | Window Closed / Lapsed |