Patent US2496040A successfully refreshed from Google Patents.
US2496040A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control valve mechanism for clutches and brakes
Assignee: Ajax Manufacturing Co
•
Filing: 1943-02-15
•
Granted: 1950-01-31
•
Expires: 1963-02-15
Abstract
No abstract record available.
Inventors
- 👤 William W Criley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:15
CPC Classifications
F; F15; F15B; F15B13/00; F15B13/02; F15B13/04; B; B21; B21H; B21H1/00; B21H1/22; B30; B30B; B30B15/00; B30B15/14; B30B15/142; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86389; Y10T137/86493; Y10T137/86574; Y10T137/8667; Y10T137/86694; Y10T137/8671
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1697952A
Cited
US1696866A
Cited
US2098115A
Cited
US2192734A
Cited
US2210227A
Cited
US2250629A
Cited
US2217332A
Cited
US2206957A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-01-30 | 1953-08-01 | 1954-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-30 | 1957-08-01 | 1958-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-30 | 1961-08-01 | 1962-01-31 | $7700.00 | Window Closed / Lapsed |