US2857006A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air driven propeller and governor therefor
Assignee: Motors Liquidation Co
•
Filing: 1954-04-01
•
Granted: 1958-10-21
•
Expires: 1974-04-01
Abstract
No abstract record available.
Inventors
- 👤 Gerald E Hook
- 👤 John H Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:21
CPC Classifications
F; F03; F03D; F03D7/00; F03D7/02; F03D7/022; F03D7/0224; F05; F05B; F05B2220/00; F05B2220/30; F05B2220/31; 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)
US1287116A
Cited
US1401651A
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US1443664A
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US1636434A
Cited
US1768784A
Cited
US2215413A
Cited
US2550229A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-10-20 | 1962-04-21 | 1962-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-20 | 1966-04-21 | 1966-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-20 | 1970-04-21 | 1970-10-21 | $7700.00 | Window Closed / Lapsed |