US2583404A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tube bending apparatus
Assignee: BUSH Manufacturing Co
•
Filing: 1948-08-03
•
Granted: 1952-01-22
•
Expires: 1968-08-03
Abstract
No abstract record available.
Inventors
- 👤 Samuel P Wyrfel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 15:56
CPC Classifications
B; B21; B21C; B21C37/00; B21C37/06; B21C37/15; B21C37/28; B21C37/283
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US822755A
Cited
US2335342A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-01-21 | 1955-07-23 | 1956-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-01-21 | 1959-07-23 | 1960-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-01-21 | 1963-07-23 | 1964-01-22 | $7700.00 | Window Closed / Lapsed |