US2992148A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alloy steels
Assignee: Huntington Alloys Corp
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Filing: 1959-04-23
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Granted: 1961-07-11
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Expires: 1979-04-23
Abstract
No abstract record available.
Inventors
- 👤 Ralph B G Yeo
- 👤 Herschel V Beasley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:29
CPC Classifications
C; C22; C22C; C22C38/00; C22C38/08; C22C38/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
AN ALLOY STEEL IN THE NORMALIZED-TEMPERED CONDITION AND CHARACTERIZED BY A MICROSTRUCTURE COMPRISED OF A RANDOMLY DISTRIBUTED FERRITE CARBIDE AGGREGATE FORMED ONLY FROM TEMPERED BAINITE AND TEMPERED MARTENSITE WHEREIN THE TEMPERED BAINITE WAS PRESENT IN AN AMOUNT OF AT LEAST 95%, SAID ALLOY STEEL CONTAINING ABOUT 0.15% TO ABOUT 0.3% CARBON, ABOUT 0.2% TO ABOUT 0.6% MANGANESE, UP TO ABOUT 0.4% SILICON, FROM 5% MOLYBDENUM, 5.5% NICKEL, ABOUT 0.2% TO ABOUT 0.25%, UP TO ABOUT 0.5% CHROMIUM, THE BALANCE BEING ESSENTIALLY IRON, SAID ALLOY STEEL BEING FURTHER CHARACTERIZED BY A GOOD COMBINATION OF PROPERTIES INCLUDING GOOD YIELD AND TENSILE STRENGTH, A LOW IMPACT TRANSITION TEMPERATURE AND GOOD MAGNETIC PROPERTIES.
Claim 2
Dependent Claim
109 words
AN ALLOY STEEL IN THE NORMALIZED-TEMPERED CONDITION AND CHARACTERIZED BY A MICROSTRUCTURE COMPRISED OF A RANDOMLY DISTRIBUTED FERRITE CARBIDE AGGREGATE FORMED ONLY FROM TEMPERED BAINITE AND TEMPERED MARTENSITE WHEREIN THE TEMPERED BAINITE WAS PRESENT IN AN AMOUNT OF AT LEAST 95%, SAID ALLOY STEEL CONTAINING ABOUT 0.15% TO ABOUT 0.3% CARBON, ABOUT 0.2% TO ABOUT 0.6% MANGANESE, UP TO ABOUT 0.4% SILICON, FROM 5% MOLYBDENUM, 5.5% NICKEL, ABOUT 0.2% TO ABOUT 0.25%, UP TO ABOUT 0.5% CHROMIUM, THE BALANCE BEING ESSENTIALLY IRON, SAID ALLOY STEEL BEING FURTHER CHARACTERIZED BY A GOOD COMBINATION OF PROPERTIES INCLUDING GOOD YIELD AND TENSILE STRENGTH, A LOW IMPACT TRANSITION TEMPERATURE AND GOOD MAGNETIC PROPERTIES.
References Cited (Backward Citations)
US2206370A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-07-10 | 1965-01-09 | 1965-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-10 | 1969-01-09 | 1969-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-10 | 1973-01-09 | 1973-07-11 | $7700.00 | Window Closed / Lapsed |