Patent US2931340A successfully refreshed from Google Patents.
US2931340A
Expired / Lapsed
US
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Control mechanism for hydraulic presses
Assignee: Electraulic Presses Ltd
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Filing: 1956-05-09
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Granted: 1960-04-05
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Expires: 1976-05-09
Abstract
No abstract record available.
Inventors
- 👤 White Tom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:02
CPC Classifications
B; B30; B30B; B30B15/00; B30B15/16; B30B15/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US691692A
Cited
US1561341A
Cited
US1561342A
Cited
US2543759A
Cited
US2641228A
Cited
GB705403A
Cited
US2761473A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-04-05 | 1963-10-05 | 1964-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-05 | 1967-10-05 | 1968-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-05 | 1971-10-05 | 1972-04-05 | $7700.00 | Window Closed / Lapsed |