US2505969A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for fixing blade angulation of wind-driven multiblade propellers
Assignee: Individual
•
Filing: 1946-11-25
•
Granted: 1950-05-02
•
Expires: 1966-11-25
Abstract
No abstract record available.
Inventors
- 👤 Marcellus L Jacobs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:18
CPC Classifications
F; F03; F03D; F03D7/00; F03D7/02; F03D7/04; F03D7/041; F03D7/022; F03D7/0224; F05; F05B; F05B2260/00; F05B2260/70; F05B2260/74; F05B2260/75; F05B2260/77; Y; Y02; Y02E; Y02E10/00; Y02E10/70; Y02E10/72
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US114381A
Cited
US1163010A
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US1834350A
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US1875998A
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US2117788A
Cited
US2050142A
Cited
US2052454A
Cited
US2464234A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-05-01 | 1953-10-31 | 1954-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-05-01 | 1957-10-31 | 1958-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-05-01 | 1961-10-31 | 1962-05-02 | $7700.00 | Window Closed / Lapsed |