US3017665A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rolling mill
Assignee: Crucible Steel Company of America
•
Filing: 1958-01-13
•
Granted: 1962-01-23
•
Expires: 1978-01-13
Abstract
No abstract record available.
Inventors
- 👤 Dasher John
- 👤 Melvin C Chang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:50
CPC Classifications
B; B22; B22F; B22F3/00; B22F3/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US611603A
Cited
GB190124021A
Cited
US2158461A
Cited
US2341732A
Cited
US2397608A
Cited
US2548009A
Cited
FR1092161A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-01-22 | 1965-07-24 | 1966-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-22 | 1969-07-24 | 1970-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-22 | 1973-07-24 | 1974-01-23 | $7700.00 | Window Closed / Lapsed |