US2583834A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic twin bar-bridge bench piercer mill
Assignee: United States Steel Corp
•
Filing: 1948-09-03
•
Granted: 1952-01-29
•
Expires: 1968-09-03
Abstract
No abstract record available.
Inventors
- 👤 Harry E Gross
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 05:17
CPC Classifications
B; B21; B21B; B21B25/00; B21B25/06
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US770195A
Cited
US1020399A
Cited
US1036309A
Cited
US1537206A
Cited
US1764736A
Cited
GB308965A
Cited
US1919390A
Cited
US2005310A
Cited
US2006336A
Cited
US2371090A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-01-28 | 1955-07-30 | 1956-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-01-28 | 1959-07-30 | 1960-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-01-28 | 1963-07-30 | 1964-01-29 | $7700.00 | Window Closed / Lapsed |