Patent US3123469A successfully refreshed from Google Patents.
US3123469A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alloy steel and method
Assignee: —
•
Filing: —
•
Granted: 1964-03-03
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Expires: 1981-03-03
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 01:42
CPC Classifications
C; C22; C22C; C22C38/00; C22C38/18; C22C38/40; C22C38/44
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
77 words
NON-MAGNETIC ALLOY STEEL WHICH IS FULLY AUSTENITIC, DUCTILE AND READILY WORKABLE AFTER SOLUTION-ANNEALING AT A TEMPERATURE OF ABOUT 1500* TO 2000*F. AND WHICH IS PRECIPITATION-HARDENABLE TO ACHIEVE HARDNESS AND STRENGTH BY THEREAFTER MERELY AGEING AT A TEMPERATURE OF ABOUT 1100* TO 1500*F. WITHOUT LOSS OF NON-MAGNETIC CHARCTERISTICS, SAID ALLOY STEEL ESSENTIALLY CONSISTING OF CHROMIUM 9% TO 11%, NICKEL 13% TO 15%, MOLYBDENUM 11% TO 13%, CARBON UP TO .12%, NITROGEN UP TO .150%,AND REMAINDER SUBSTANTIALLY ALL IRON.
Claim 2
Dependent Claim
77 words
NON-MAGNETIC ALLOY STEEL WHICH IS FULLY AUSTENITIC, DUCTILE AND READILY WORKABLE AFTER SOLUTION-ANNEALING AT A TEMPERATURE OF ABOUT 1500* TO 2000*F. AND WHICH IS PRECIPITATION-HARDENABLE TO ACHIEVE HARDNESS AND STRENGTH BY THEREAFTER MERELY AGEING AT A TEMPERATURE OF ABOUT 1100* TO 1500*F. WITHOUT LOSS OF NON-MAGNETIC CHARCTERISTICS, SAID ALLOY STEEL ESSENTIALLY CONSISTING OF CHROMIUM 9% TO 11%, NICKEL 13% TO 15%, MOLYBDENUM 11% TO 13%, CARBON UP TO .12%, NITROGEN UP TO .150%,AND REMAINDER SUBSTANTIALLY ALL IRON.
References Cited (Backward Citations)
US2724647A
Cited
US2984563A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-03-03 | 1967-09-02 | 1968-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-03-03 | 1971-09-02 | 1972-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-03-03 | 1975-09-02 | 1976-03-03 | $7700.00 | Window Closed / Lapsed |