US2456689A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid pressure motor
Assignee: United Shoe Machinery Corp
•
Filing: 1944-11-04
•
Granted: 1948-12-21
•
Expires: 1964-11-04
Abstract
No abstract record available.
Inventors
- 👤 Fred C Eastman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:29
CPC Classifications
F; F42; F42C; F42C17/00
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US112385A
Cited
US1001340A
Cited
US1692034A
Cited
US1907538A
Cited
US2157240A
Cited
US2142628A
Cited
US2184793A
Cited
US2335809A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-12-21 | 1952-06-21 | 1952-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-12-21 | 1956-06-21 | 1956-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-12-21 | 1960-06-21 | 1960-12-21 | $7700.00 | Window Closed / Lapsed |