US2849231A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal sheet feeder
Assignee: Inland Steel Co
•
Filing: 1954-03-11
•
Granted: 1958-08-26
•
Expires: 1974-03-11
Abstract
No abstract record available.
Inventors
- 👤 Lewis J Reguly
- 👤 John M Marshall
- 👤 Coffman Alvin
- 👤 Lysek Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:09
CPC Classifications
B; B21; B21D; B21D43/00; B21D43/20; B21D43/24
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-08-25 | 1962-02-24 | 1962-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-25 | 1966-02-24 | 1966-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-25 | 1970-02-24 | 1970-08-26 | $7700.00 | Window Closed / Lapsed |