US2467964A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Propeller mechanism
Assignee: Motors Liquidation Co
•
Filing: 1945-01-15
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Granted: 1949-04-19
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Expires: 1965-01-15
Abstract
No abstract record available.
Inventors
- 👤 Carson Howard
- 👤 Morris J Duer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:47
CPC Classifications
B; B64; B64C; B64C11/00; B64C11/30; Y; Y10; Y10T; Y10T137/00; Y10T137/0971; Y10T137/108; Y10T137/1135; Y10T137/1171; Y10T137/2496; Y10T137/2559; Y10T137/2574; Y10T137/2605; Y10T137/794; Y10T137/8085
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-04-18 | 1952-10-18 | 1953-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-04-18 | 1956-10-18 | 1957-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-04-18 | 1960-10-18 | 1961-04-19 | $7700.00 | Window Closed / Lapsed |