US3132025A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alloy steel
Assignee: Huntington Alloys Corp
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Filing: 1962-12-03
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Granted: 1964-05-05
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Expires: 1982-12-03
Abstract
No abstract record available.
Inventors
- 👤 John L Hurley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 07:49
CPC Classifications
C; C22; C22C; C22C38/00; C22C38/08; C22C38/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
144 words
AN ALLOY STEEL CHARACTERIZED IN THE HOT-ROLLED CONDITION BY A YIELD STRENGTH OF AT LEAST 70,000 P.S.I., A YIELD TO TENSILE STRENGTH RATIO OF AT LEAST 0.85, A CHARPY V-NOTCH IMPACT STRENGTH OF AT LEAST 15 FT.-LBS. AT -50*F. AND AT LEAST 75 FT.-LBS. AT ROOM TEMPERATURE, A TENSILE ELONGATION OF OVER 20%, A REDUCTION OF AREA OF AT LEAST 60% AND GOOD WELDABILITY AND CORROSION RESISTANCE, SAID ALLOY STEEL CONSISTING ESSENTIALLY OF CARBON IN AN AMOUNT UP TO 0.06%, ABOUT 0.2% TO ABOUT 0.75% MANGANESE, SILICON IN AN AMOUNT UP TO 0.35%, ABOUT 1% TO ABOUT 1.7% COPPER, ABOUT 0.7% TO ABOUT 1.6% NICKEL, THE RATIO OF COPPER TO NICKEL NOT EXCEEDING ABOUT 2 TO 1, ABOUT 0.01% TO ABOUT 0.16% COLUMBIUM, ALUMINUM IN A SMALL BUT EFFECTIVE AMOUNT UP TO ABOUT 0.1% SUFFICIENT TO INSURE GOOD DEOXIDATION, AND THE BALANCE ESSENTIALLY IRON.
Claim 2
Dependent Claim
144 words
AN ALLOY STEEL CHARACTERIZED IN THE HOT-ROLLED CONDITION BY A YIELD STRENGTH OF AT LEAST 70,000 P.S.I., A YIELD TO TENSILE STRENGTH RATIO OF AT LEAST 0.85, A CHARPY V-NOTCH IMPACT STRENGTH OF AT LEAST 15 FT.-LBS. AT -50*F. AND AT LEAST 75 FT.-LBS. AT ROOM TEMPERATURE, A TENSILE ELONGATION OF OVER 20%, A REDUCTION OF AREA OF AT LEAST 60% AND GOOD WELDABILITY AND CORROSION RESISTANCE, SAID ALLOY STEEL CONSISTING ESSENTIALLY OF CARBON IN AN AMOUNT UP TO 0.06%, ABOUT 0.2% TO ABOUT 0.75% MANGANESE, SILICON IN AN AMOUNT UP TO 0.35%, ABOUT 1% TO ABOUT 1.7% COPPER, ABOUT 0.7% TO ABOUT 1.6% NICKEL, THE RATIO OF COPPER TO NICKEL NOT EXCEEDING ABOUT 2 TO 1, ABOUT 0.01% TO ABOUT 0.16% COLUMBIUM, ALUMINUM IN A SMALL BUT EFFECTIVE AMOUNT UP TO ABOUT 0.1% SUFFICIENT TO INSURE GOOD DEOXIDATION, AND THE BALANCE ESSENTIALLY IRON.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-05-05 | 1967-11-04 | 1968-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-05 | 1971-11-04 | 1972-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-05 | 1975-11-04 | 1976-05-05 | $7700.00 | Window Closed / Lapsed |