US2707680A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alloy of iron, nickel, and molybdenum
Assignee: Heppenstall Co
•
Filing: 1952-08-29
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Granted: 1955-05-03
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Expires: 1972-08-29
Abstract
No abstract record available.
Inventors
- 👤 John A Succop
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:28
CPC Classifications
C; C21; C21D; C21D9/00; C21D9/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
STEEL ADAPTED FOR HOT PRESS FORGING AND RALTED STATIC PRESSURE HOT FORMING, CHARACTERIZED WHEN NORMALIZED FROM BETWEEN 1840* AND 1860* F. AND TEMPERED BELOW 110* F. OF UNDERGOING PRECIPITATION HARDENING IN HOT FORMING USE, AND FORMED FROM SUBSTANTIALLY THE COMPOSITION: 0.15 TO 0.3 PER CENT OF CARBON, 0.6 TO 0.8 PER CENT OF MANGANESE, 3.25 TO 3.5 PER CENT OF MOLYBDENUM, 3.0 TO 3.25 PER CENT OF NICKLE, 0.2 TO 0.35 PER CENT OF SILICON AND THE REMAINDER IRON CONTAINING IMPURITIES IN AMOUNTS NOT DETRIMENTALLY EFFECTING THE SAID PROPERTIES.
Claim 2
Dependent Claim
89 words
STEEL ADAPTED FOR HOT PRESS FORGING AND RALTED STATIC PRESSURE HOT FORMING, CHARACTERIZED WHEN NORMALIZED FROM BETWEEN 1840* AND 1860* F. AND TEMPERED BELOW 110* F. OF UNDERGOING PRECIPITATION HARDENING IN HOT FORMING USE, AND FORMED FROM SUBSTANTIALLY THE COMPOSITION: 0.15 TO 0.3 PER CENT OF CARBON, 0.6 TO 0.8 PER CENT OF MANGANESE, 3.25 TO 3.5 PER CENT OF MOLYBDENUM, 3.0 TO 3.25 PER CENT OF NICKLE, 0.2 TO 0.35 PER CENT OF SILICON AND THE REMAINDER IRON CONTAINING IMPURITIES IN AMOUNTS NOT DETRIMENTALLY EFFECTING THE SAID PROPERTIES.
References Cited (Backward Citations)
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Cited
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Cited
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Cited
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Cited
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Cited
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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) | 1958-05-02 | 1958-11-01 | 1959-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-05-02 | 1962-11-01 | 1963-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-05-02 | 1966-11-01 | 1967-05-03 | $7700.00 | Window Closed / Lapsed |