US2798563A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Propeller control
Assignee: Motors Liquidation Co
•
Filing: 1952-02-02
•
Granted: 1957-07-09
•
Expires: 1972-02-02
Abstract
No abstract record available.
Inventors
- 👤 Dale W Miller
- 👤 Battenberg Virgil
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:25
CPC Classifications
B; B64; B64C; B64C11/00; B64C11/30; B64C11/38; B64C11/385; F; F15; F15B; F15B21/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR473018A
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US2560914A
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US2423191A
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US2402065A
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GB600603A
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US2437701A
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US2455378A
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US2612958A
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US2640555A
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US2513660A
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US2593910A
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US2669312A
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US2652122A
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US2592124A
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US2699304A
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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) | 1960-07-08 | 1961-01-07 | 1961-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-08 | 1965-01-07 | 1965-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-08 | 1969-01-07 | 1969-07-09 | $7700.00 | Window Closed / Lapsed |