US2568262A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic press circuit having intensifier utilized to decrease pressure and increase volume or vice versa
Assignee: HPM Development Corp
•
Filing: 1945-11-26
•
Granted: 1951-09-18
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Expires: 1965-11-26
Abstract
No abstract record available.
Inventors
- 👤 Warren R Tucker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:27
CPC Classifications
B; B30; B30B; B30B15/00; B30B15/16; F; F15; F15B; F15B3/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US406193A
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US556419A
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FR330855A
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GB190524397A
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US1692771A
Cited
US1927583A
Cited
US2058377A
Cited
US2243978A
Cited
US2293076A
Cited
US2336446A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-09-17 | 1955-03-19 | 1955-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-09-17 | 1959-03-19 | 1959-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-09-17 | 1963-03-19 | 1963-09-18 | $7700.00 | Window Closed / Lapsed |