US2484291A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wind rotor
Assignee: Individual
•
Filing: 1945-07-13
•
Granted: 1949-10-11
•
Expires: 1965-07-13
Abstract
No abstract record available.
Inventors
- 👤 Russell R Hays
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 03:40
CPC Classifications
F; F03; F03D; F03D9/00; F03D9/20; F03D9/28; F03D80/00; F03D80/70; Y; Y02; Y02E; Y02E10/00; Y02E10/70; Y02E10/72
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US563794A
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US485881A
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US1000690A
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US924060A
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US1254737A
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US1299151A
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US1369596A
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DE601986C
Cited
US2178047A
Cited
US2360791A
Cited
US2369048A
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US2460527A
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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) | 1952-10-10 | 1953-04-11 | 1953-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-10-10 | 1957-04-11 | 1957-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-10-10 | 1961-04-11 | 1961-10-11 | $7700.00 | Window Closed / Lapsed |