US3225580A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reduction of edge taper in strip rolling
Assignee: United States Steel Corp
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Filing: 1963-04-24
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Granted: 1965-12-28
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Expires: 1983-04-24
Abstract
No abstract record available.
Inventors
- 👤 Abdel H El-Waziri
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:41
CPC Classifications
B; B21; B21B; B21B45/00; B21B45/02; B21B45/0269; B21B45/0275; B21B45/0278; B21B45/0284; B21B37/00; B21B37/28; B21B37/44; B21B1/00; B21B1/22; B21B1/24; B21B1/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
62 words
THE PROCESS OF REDUCTION OF METAL STRIP AND THE LIKE BY COLD ROLLING, COMPRISING REMOVAL OF NORMALLY PRESENT LUBRICANTS FROM SELECTED AREAS ADJACENT TO THE STRIP EDGES, PRIOR TO ROLL ENTRY, AND FROM THE CORRESPONDING AREAS OF THE ROLL SURFACES ABOUT TO CONTACT SAID STRIP AREAS, TO REDUCE EDGE TAPER OF THE STRIP MATERIAL UPON COLD ROLLING, AND COLD ROLLING SAID STRIP.
Claim 2
Dependent Claim
62 words
THE PROCESS OF REDUCTION OF METAL STRIP AND THE LIKE BY COLD ROLLING, COMPRISING REMOVAL OF NORMALLY PRESENT LUBRICANTS FROM SELECTED AREAS ADJACENT TO THE STRIP EDGES, PRIOR TO ROLL ENTRY, AND FROM THE CORRESPONDING AREAS OF THE ROLL SURFACES ABOUT TO CONTACT SAID STRIP AREAS, TO REDUCE EDGE TAPER OF THE STRIP MATERIAL UPON COLD ROLLING, AND COLD ROLLING SAID STRIP.
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) | 1968-12-27 | 1969-06-28 | 1969-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-27 | 1973-06-28 | 1973-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-27 | 1977-06-28 | 1977-12-28 | $7700.00 | Window Closed / Lapsed |