US2657904A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic wedge
Assignee: Individual
•
Filing: 1949-08-25
•
Granted: 1953-11-03
•
Expires: 1969-08-25
Abstract
No abstract record available.
Inventors
- 👤 Evenson Christopher Brady
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:29
CPC Classifications
A; A01; A01G; A01G23/00; A01G23/02; A01G23/099; B; B27; B27G; B27G19/00; B27G19/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US443581A
Cited
US1556584A
Cited
US1932584A
Cited
US2341278A
Cited
US2385753A
Cited
US2497836A
Cited
US2505847A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-11-02 | 1957-05-04 | 1957-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-02 | 1961-05-04 | 1961-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-02 | 1965-05-04 | 1965-11-03 | $7700.00 | Window Closed / Lapsed |