US3728147A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for combined coating and cold reduction of metal
Assignee: British Iron and Steel Research Association BISRA
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Filing: 1970-09-18
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Granted: 1973-04-17
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Expires: 1990-09-18
Abstract
Abstract METAL SHEET OR STRIP FORMED THROUGH A COLD MILL TO REDUCE IT TO SUBSTANTIALLY FINAL GAUGE IS COATED THROUGH CONTACT WITH THE MILL ROLLS, WITH A FLUID WHICH IS CAPABLE OF CROSS LINKING OR OF POLYMERISATION UNDER THE ACTION OF RADIATION OF AN ACCELERATED ELECTRON BEAM, X-RAYS OR GRAMMA RAYS OF PROVIDING A DEGREE OF LUBRICATION OF THE MILL ROLLS. THE COATED STRIP IS THEN SUBJECT TO RRADIATION, EITHER DIRECTLY AFTER COATING OR AFTER AN INTERMEDIATE STORAGE STEP INCLUDING FOR EXAMPLE COILING AND UNCOILING.
Inventors
- 👤 W Jenkins
- 👤 T Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:16
CPC Classifications
B; B05; B05D; B05D3/00; B05D3/06; B05D3/068
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-04-16 | 1976-10-16 | 1977-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-16 | 1980-10-16 | 1981-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-16 | 1984-10-16 | 1985-04-17 | $7700.00 | Window Closed / Lapsed |