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Patent US2708379A successfully refreshed from Google Patents.
US2708379A
Expired / Lapsed
US
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Method of hot rolling stainless steel
Assignee: United States Steel Corp
•
Filing: 1950-02-07
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Granted: 1955-05-17
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Expires: 1970-02-07
Abstract
No abstract record available.
Inventors
- 👤 Matti H Pakkala
- 👤 John L Scarry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:22
CPC Classifications
B; B21; B21B; B21B3/00; B21B3/02; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/4981; Y10T29/49812
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1505215A
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US1085768A
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US1080059A
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US1432523A
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GB300633A
Cited
US1922005A
Cited
US1879701A
Cited
US2121606A
Cited
US2142869A
Cited
US2430083A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-05-16 | 1958-11-15 | 1959-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-05-16 | 1962-11-15 | 1963-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-05-16 | 1966-11-15 | 1967-05-17 | $7700.00 | Window Closed / Lapsed |