Patent US2949356A successfully refreshed from Google Patents.
US2949356A
Expired / Lapsed
US
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Ferrous alloys and articles made therefrom
Assignee: Latrobe Steel Co
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Filing: 1958-03-28
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Granted: 1960-08-16
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Expires: 1978-03-28
Abstract
No abstract record available.
Inventors
- 👤 David P Hughes
- 👤 Stewart G Fletcher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:53
CPC Classifications
C; C22; C22C; C22C38/00; C22C38/18; C22C38/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
84 words
AN ALLOY ADAPTED FOR FORMING METALS AT HIGH TEMPERATURES COMPRISING ABOUT 0.65% TO ABOUT 3.0% CARBON, ABOUT 3.0% TO ABOUT 10.0% VANADIUM, LESS THAN ABOUT 2% MANAGNESE, ABOUT 3.0% TO ABOUT 8.0% CHROMIUM, UP TO ABOUT 2% TUNGSTEN, ABOUT 0.50% TO 3.0% MOLYBDENUM, UP TO ABOUT 2 SILICON, UP TO ABOUT 3% NICKEL, UP TO ABOUT 0.25% SULPHUR AND THE BALANCE SUBSTANTIALLY IRON WITH RESIDUAL IMPURITIES IN ORDINARY AMOUNTS IN WHICH ALLOY THE VANADIUM APPEARS IN AMOUNTS WITHIN THE FOREGOING LIMITS SUCH THAT THE
Claim 2
Dependent Claim
84 words
AN ALLOY ADAPTED FOR FORMING METALS AT HIGH TEMPERATURES COMPRISING ABOUT 0.65% TO ABOUT 3.0% CARBON, ABOUT 3.0% TO ABOUT 10.0% VANADIUM, LESS THAN ABOUT 2% MANAGNESE, ABOUT 3.0% TO ABOUT 8.0% CHROMIUM, UP TO ABOUT 2% TUNGSTEN, ABOUT 0.50% TO 3.0% MOLYBDENUM, UP TO ABOUT 2 SILICON, UP TO ABOUT 3% NICKEL, UP TO ABOUT 0.25% SULPHUR AND THE BALANCE SUBSTANTIALLY IRON WITH RESIDUAL IMPURITIES IN ORDINARY AMOUNTS IN WHICH ALLOY THE VANADIUM APPEARS IN AMOUNTS WITHIN THE FOREGOING LIMITS SUCH THAT THE
References Cited (Backward Citations)
US2355224A
Cited
US2575219A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-16 | 1964-02-15 | 1964-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-16 | 1968-02-15 | 1968-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-16 | 1972-02-15 | 1972-08-16 | $7700.00 | Window Closed / Lapsed |