US2931497A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic drives for extrusion press
Assignee: Schloemann AG
•
Filing: 1957-04-03
•
Granted: 1960-04-05
•
Expires: 1977-04-03
Abstract
No abstract record available.
Inventors
- 👤 Billen Peter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:13
CPC Classifications
B; B30; B30B; B30B15/00; B30B15/16; B30B15/24; B21; B21C; B21C31/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1652026A
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US1620534A
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US1768866A
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US2164640A
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US2194054A
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US2782919A
Cited
GB738514A
Cited
GB770871A
Cited
DE947783C
Cited
US2827763A
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 |