US2492544A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine for cold-drawing bar stock
Assignee: Great Lakes Steel Corp
•
Filing: 1944-10-09
•
Granted: 1949-12-27
•
Expires: 1964-10-09
Abstract
No abstract record available.
Inventors
- 👤 Phillip C Vetter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:30
CPC Classifications
B; B21; B21C; B21C1/00; B21C1/16; B21C1/27; B21C1/28
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US295898A
Cited
US335496A
Cited
US535534A
Cited
US1816484A
Cited
US1812359A
Cited
US2228746A
Cited
US2404234A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-12-26 | 1953-06-27 | 1953-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-12-26 | 1957-06-27 | 1957-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-12-26 | 1961-06-27 | 1961-12-27 | $7700.00 | Window Closed / Lapsed |