Patent US2508240A successfully refreshed from Google Patents.
US2508240A
Expired / Lapsed
US
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Hydraulic jack
Assignee: Individual
•
Filing: 1947-07-24
•
Granted: 1950-05-16
•
Expires: 1967-07-24
Abstract
No abstract record available.
Inventors
- 👤 Edward H Fenn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:27
CPC Classifications
B; B66; B66F; B66F3/00; B66F3/24; B66F3/25; B66F3/36
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB274455A
Cited
US957177A
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US1536413A
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US1686993A
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US1685697A
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US1864454A
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US2019353A
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US2087718A
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US2161659A
Cited
US2163959A
Cited
US2231680A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-05-15 | 1953-11-14 | 1954-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-05-15 | 1957-11-14 | 1958-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-05-15 | 1961-11-14 | 1962-05-16 | $7700.00 | Window Closed / Lapsed |