Patent US2696779A successfully refreshed from Google Patents.
US2696779A
Expired / Lapsed
US
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Power unit for hydraulic presses
Assignee: Commonwealth Engineering Company of Ohio
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Filing: 1950-12-21
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Granted: 1954-12-14
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Expires: 1970-12-21
Abstract
No abstract record available.
Inventors
- 👤 Ernst Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:00
CPC Classifications
B; B30; B30B; B30B1/00; B30B1/32; F; F21; F21Y; F21Y2103/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US674647A
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US812228A
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US2003922A
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US2283168A
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CH229681A
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US2357507A
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US2384161A
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US2516301A
Cited
US2512531A
Cited
US2484908A
Cited
US2544731A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-12-13 | 1958-06-14 | 1958-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-12-13 | 1962-06-14 | 1962-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-12-13 | 1966-06-14 | 1966-12-14 | $7700.00 | Window Closed / Lapsed |