US2451059A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Propeller mechanism
Assignee: Motors Liquidation Co
•
Filing: 1942-08-05
•
Granted: 1948-10-12
•
Expires: 1962-08-05
Abstract
No abstract record available.
Inventors
- 👤 Werner J Bianchard
- 👤 Charles S J Macneil
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 02:14
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)
US1907014A
Cited
US1987651A
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DE635992C
Cited
GB451520A
Cited
US2202813A
Cited
US2241475A
Cited
US2276717A
Cited
US2307102A
Cited
US2263449A
Cited
US2307039A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-10-12 | 1952-04-12 | 1952-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-10-12 | 1956-04-12 | 1956-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-10-12 | 1960-04-12 | 1960-10-12 | $7700.00 | Window Closed / Lapsed |