US2699304A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control for a plurality of variable pitch counterrotating propellers
Assignee: Motors Liquidation Co
•
Filing: 1950-12-26
•
Granted: 1955-01-11
•
Expires: 1970-12-26
Abstract
No abstract record available.
Inventors
- 👤 Robert C Treseder
- 👤 Albert P Dinsmore
- 👤 Richard E Moore
- 👤 Howard M Geyer
- 👤 Kenneth L Berninger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:46
CPC Classifications
B; B64; B64C; B64C11/00; B64C11/46; B64C11/50
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2502041A
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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) | 1958-01-10 | 1958-07-12 | 1959-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-01-10 | 1962-07-12 | 1963-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-01-10 | 1966-07-12 | 1967-01-11 | $7700.00 | Window Closed / Lapsed |