US2573783A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Propeller pitch change motor
Assignee: RTX Corp
•
Filing: 1945-10-09
•
Granted: 1951-11-06
•
Expires: 1965-10-09
Abstract
No abstract record available.
Inventors
- 👤 John E Anderson
- 👤 Jr Arthur N Allen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:51
CPC Classifications
B; B64; B64C; B64C11/00; B64C11/30; B64C11/38; B64C11/42
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US853999A
Cited
DE346563C
Cited
CH147228A
Cited
US2013647A
Cited
GB476972A
Cited
FR857521A
Cited
US2307101A
Cited
GB539303A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-11-05 | 1955-05-07 | 1955-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-11-05 | 1959-05-07 | 1959-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-11-05 | 1963-05-07 | 1963-11-06 | $7700.00 | Window Closed / Lapsed |