US2893552A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tensioning apparatus for extrusion presses
Assignee: Oilgear Co
•
Filing: 1955-10-27
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Granted: 1959-07-07
•
Expires: 1975-10-27
Abstract
No abstract record available.
Inventors
- 👤 Enoch D Davies
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:05
CPC Classifications
B; B21; B21C; B21C31/00; B21C35/00; B21C35/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE192471C
Cited
US644919A
Cited
GB284085A
Cited
US2074068A
Cited
US2056896A
Cited
US2080810A
Cited
US2332069A
Cited
US2720310A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-07-06 | 1963-01-05 | 1963-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-07-06 | 1967-01-05 | 1967-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-07-06 | 1971-01-05 | 1971-07-07 | $7700.00 | Window Closed / Lapsed |