Patent US2431290A successfully refreshed from Google Patents.
US2431290A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control gearing and lever
Assignee: Individual
•
Filing: 1942-08-13
•
Granted: 1947-11-18
•
Expires: 1962-08-13
Abstract
No abstract record available.
Inventors
- 👤 Emilie M Wildermann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:38
CPC Classifications
F; F16; F16K; F16K11/00; F16K11/10; F16K11/14; F16K11/18; B; B66; B66C; B66C13/00; B66C13/52; B66C13/54; B66C2700/00; B66C2700/08; B66C2700/085; Y; Y10; Y10S; Y10S116/00; Y10S116/20; Y10T; Y10T137/00; Y10T137/6851; Y10T137/6966; Y10T137/6969; Y10T137/6977; Y10T137/8593; Y10T137/87056; Y10T137/877; Y10T137/87788; Y10T74/00; Y10T74/20; Y10T74/20012
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US539863A
Cited
US1061701A
Cited
US1529254A
Cited
US1550416A
Cited
US2033941A
Cited
US1864329A
Cited
US2038943A
Cited
US2173192A
Cited
US2298267A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-11-17 | 1951-05-19 | 1951-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-11-17 | 1955-05-19 | 1955-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-11-17 | 1959-05-19 | 1959-11-18 | $7700.00 | Window Closed / Lapsed |