US2677610A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High temperature alloy steel and articles made therefrom
Assignee: Universal Cyclops Steel Corp
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Filing: 1951-10-24
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Granted: 1954-05-04
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Expires: 1971-10-24
Abstract
No abstract record available.
Inventors
- 👤 Jr Charles T Evans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 11:18
CPC Classifications
C; C22; C22C; C22C38/00; C22C38/18; C22C38/40; C22C38/44; C22C38/60
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
61 words
AN ALLOY STEEL CHARACTERIZED BY HIGH LOADCARRYING ABILITY AT ELEVATED TEMPERATURES AND CONTAINING CARBON .28 TO .35%, MANGANESE .75 TO 1.5%, SILICON .30 TO .80%, CHROMIUM 18.0 TO 21.0%, NICKEL 8.0 TO 11.0%, MOLYBDENUM 1.0 TO 2.0%, TUNGSTEN 1.0 TO 2.0%, TITANIUM .40 TO .90%, SULPHUR .40% MAXIMUM AND PHOSPHORUS .20% MAXIMUM, THE BALANCE BEING ALL IRON EXCEPT FOR INCIDENTAL IMPURITIES.
Claim 2
Dependent Claim
61 words
AN ALLOY STEEL CHARACTERIZED BY HIGH LOADCARRYING ABILITY AT ELEVATED TEMPERATURES AND CONTAINING CARBON .28 TO .35%, MANGANESE .75 TO 1.5%, SILICON .30 TO .80%, CHROMIUM 18.0 TO 21.0%, NICKEL 8.0 TO 11.0%, MOLYBDENUM 1.0 TO 2.0%, TUNGSTEN 1.0 TO 2.0%, TITANIUM .40 TO .90%, SULPHUR .40% MAXIMUM AND PHOSPHORUS .20% MAXIMUM, THE BALANCE BEING ALL IRON EXCEPT FOR INCIDENTAL IMPURITIES.
References Cited (Backward Citations)
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Cited
US2416515A
Cited
CH267444A
Cited
US2432615A
Cited
US2536033A
Cited
US2556373A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-05-03 | 1957-11-02 | 1958-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-05-03 | 1961-11-02 | 1962-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-05-03 | 1965-11-02 | 1966-05-04 | $7700.00 | Window Closed / Lapsed |