Patent US3055243A successfully refreshed from Google Patents.
US3055243A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Protective system for mill rolls
Assignee: United States Steel Corp
•
Filing: 1960-08-02
•
Granted: 1962-09-25
•
Expires: 1980-08-02
Abstract
No abstract record available.
Inventors
- 👤 Thomas K Cauley
- 👤 Waziri Abdel H El
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:41
CPC Classifications
B; B21; B21B; B21B33/00; F; F16; F16P; F16P5/00; F16P5/005
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US127714A
Cited
GB191012385A
Cited
US1672118A
Cited
US1891955A
Cited
US2108746A
Cited
US2205632A
Cited
DE852971C
Cited
US2686930A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-09-24 | 1966-03-26 | 1966-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-24 | 1970-03-26 | 1970-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-24 | 1974-03-26 | 1974-09-25 | $7700.00 | Window Closed / Lapsed |