Patent US3600160A successfully refreshed from Google Patents.
US3600160A
Expired / Lapsed
US
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Heat and temper resistant alloy steel
Assignee: Wallace Murray Corp
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Filing: 1968-05-14
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Granted: 1971-08-17
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Expires: 1988-05-14
Abstract
Abstract TEMPER RESISTANT ALLOY CONSISTING ESSENTIALLY OF ABOUT: 0.15 TO 0.35% CARBON, 0.25 TO 1.0% VANADIUM, UP TO 2% EACH OF MANGANESE, SILICON AND NICKEL, UP TO 3% MOLYBDENUM, UP TO 2% CHROMIUM, UP TO 6% EACH OF TUNGSTEN AND COBALT, UP TO 0.5% OF METAL OF THE GROUP OF COLUMBIUM, TITANIUM AND TANTALUM, SAID ALLOY CONTAINING AT LEAST 1% OF METAL OF THE GROUP MOLYBDENUM AND TUNGSTEN, AND THE VANADIUM CONTENT BEING ABOUT 1.8 TO 3.0 TIMES THE CARBON CONTENT, BALANCE SUBSTANTIALLY IRON.
Inventors
- 👤 Charles R Simcoe
- 👤 Alvin E Nehrenberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 08:28
CPC Classifications
C; C22; C22C; C22C38/00; C22C38/18; C22C38/40; C22C38/46; C22C38/12; C22C38/22; C22C38/44
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-08-16 | 1975-02-15 | 1975-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-16 | 1979-02-15 | 1979-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-16 | 1983-02-15 | 1983-08-17 | $7700.00 | Window Closed / Lapsed |