US3076361A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rolling steel in ferritic state
Assignee: Bethlehem Steel Corp
•
Filing: 1960-05-12
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Granted: 1963-02-05
•
Expires: 1980-05-12
Abstract
No abstract record available.
Inventors
- 👤 Epstein Samuel
- 👤 John W Frame
- 👤 George F Melloy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 22:18
CPC Classifications
B; B21; B21B; B21B1/00; B21B1/22; B21B1/24; B21B1/26; C; C21; C21D; C21D8/00; B21B2201/00; B21B2201/04; Y; Y10; Y10S; Y10S72/00; Y10S72/70
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
THE METHOD OF PRODUCING ROLLED SHAPES OF NONAUSTENITIC STEEL COMPRISING HEAT TREATING A BILLET OF SAID STEEL TO PRODUCE THEREIN THE METALLURGICAL AND MECHANICAL PROPERTIES DESIRED IN THE ROLLED SHAPE, HEATING SAID STEEL BILLET TO WITHIN A TEMPERTURE RANGE HAVING AS THE UPPER LIMIT THEREOF, THE HIGHEST TEMPERATURE AT WHICH SAID STEEL BILLET WILL REMAIN WHOLLY FERRITIC AND HAVING AS THELOWER LIMIT THEREOF, A TEMPERATURE OF APPROXIMATELY 200*F. BELOW THE CRITICAL TEMPERATURE, ON HEATING, OF THE SAID STEEL BILLET, AND ROLLING SAID STEEL BILLET WHILE WITHIN SAID TEMPERATURE RANGE AND WHILE MAINTAINING SAID PROPERTIES.
Claim 2
Independent Claim
94 words
THE METHOD OF PRODUCING ROLLED SHAPES OF NONAUSTENITIC STEEL COMPRISING HEAT TREATING A BILLET OF SAID STEEL TO PRODUCE THEREIN THE METALLURGICAL AND MECHANICAL PROPERTIES DESIRED IN THE ROLLED SHAPE, HEATING SAID STEEL BILLET TO WITHIN A TEMPERTURE RANGE HAVING AS THE UPPER LIMIT THEREOF, THE HIGHEST TEMPERATURE AT WHICH SAID STEEL BILLET WILL REMAIN WHOLLY FERRITIC AND HAVING AS THELOWER LIMIT THEREOF, A TEMPERATURE OF APPROXIMATELY 200*F. BELOW THE CRITICAL TEMPERATURE, ON HEATING, OF THE SAID STEEL BILLET, AND ROLLING SAID STEEL BILLET WHILE WITHIN SAID TEMPERATURE RANGE AND WHILE MAINTAINING SAID PROPERTIES.
References Cited (Backward Citations)
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US2400866A
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US2767835A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-02-04 | 1966-08-06 | 1967-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-04 | 1970-08-06 | 1971-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-04 | 1974-08-06 | 1975-02-05 | $7700.00 | Window Closed / Lapsed |