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US2690323A
Expired / Lapsed
US
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Hydraulic wedge
Assignee: Individual
•
Filing: 1952-04-22
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Granted: 1954-09-28
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Expires: 1972-04-22
Abstract
No abstract record available.
Inventors
- 👤 Evenson Christopher Brady
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 22:30
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
US1395209A
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US2093452A
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US2193497A
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US2283089A
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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) | 1957-09-27 | 1958-03-29 | 1958-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-09-27 | 1962-03-29 | 1962-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-09-27 | 1966-03-29 | 1966-09-28 | $7700.00 | Window Closed / Lapsed |