Patent CA576900A successfully refreshed from Google Patents.
Patent US2513467A successfully refreshed from Google Patents.
US2513467A
Expired / Lapsed
US
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Alloy article for use at elevated temperatures
Assignee: Union Carbide Corp
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Filing: 1946-05-09
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Granted: 1950-07-04
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Expires: 1966-05-09
Abstract
No abstract record available.
Inventors
- 👤 Franks Russell
- 👤 William O Binder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 02:03
CPC Classifications
C; C22; C22C; C22C19/00; C22C19/03; C22C19/05; C22C19/051; C22C19/055
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
136 words
A HEAT RESISTANT ALLOY ARTICLE WHICH IN NORMAL USE IS EXPOSED TO ELEVATED TEMPREATURES UPWARDS OF 1200*F. AND HAS GREAT STRENGTH AND STABILITY WHEN SUBJECTED TO HIGH STRESSES AT SUCH ELEVATED TEMPERATURES, SAID ARTICLE BEING COMPOSED OF A MACHINABLE, WELDABLE, CASTABLE AND HOT-WORKABLE ALLOY CONTAINING: 15% TO 25% CHROMIUM; 15% TO 25% NICKEL; 10% TO 25% COBALT; AT LEAST 10% BUT NOT MORE THAN 15% TUNGSTEN; 0.5% TO 3% IN THE AGGREGATE OF AT LEAST ONE ELEMENT SELECTED FROM THE GROUP CONSISTING OF COLUMBIUM TANTALUM, TITANIUM AND VANADIUM, THE AMOUNT OF ANY SINGLE ELEMENT OF SAID GROUP BEING LESS THAN 2% OF THE ALLOY AND THE TITANIUM CONTENT NOT EXCEEDING 1.5%; CARBON IN AN EFFECTIVE AMOUNT UP TO 1.0%; 0.05% TO 0.25% NITROGEN; THE REMAINDER IRON AND INCIDENTAL IMPURITIES, THE IRON CONTENT BEING AT LEAST 15%.
Claim 2
Dependent Claim
136 words
A HEAT RESISTANT ALLOY ARTICLE WHICH IN NORMAL USE IS EXPOSED TO ELEVATED TEMPREATURES UPWARDS OF 1200*F. AND HAS GREAT STRENGTH AND STABILITY WHEN SUBJECTED TO HIGH STRESSES AT SUCH ELEVATED TEMPERATURES, SAID ARTICLE BEING COMPOSED OF A MACHINABLE, WELDABLE, CASTABLE AND HOT-WORKABLE ALLOY CONTAINING: 15% TO 25% CHROMIUM; 15% TO 25% NICKEL; 10% TO 25% COBALT; AT LEAST 10% BUT NOT MORE THAN 15% TUNGSTEN; 0.5% TO 3% IN THE AGGREGATE OF AT LEAST ONE ELEMENT SELECTED FROM THE GROUP CONSISTING OF COLUMBIUM TANTALUM, TITANIUM AND VANADIUM, THE AMOUNT OF ANY SINGLE ELEMENT OF SAID GROUP BEING LESS THAN 2% OF THE ALLOY AND THE TITANIUM CONTENT NOT EXCEEDING 1.5%; CARBON IN AN EFFECTIVE AMOUNT UP TO 1.0%; 0.05% TO 0.25% NITROGEN; THE REMAINDER IRON AND INCIDENTAL IMPURITIES, THE IRON CONTENT BEING AT LEAST 15%.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-07-03 | 1954-01-02 | 1954-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-07-03 | 1958-01-02 | 1958-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-07-03 | 1962-01-02 | 1962-07-04 | $7700.00 | Window Closed / Lapsed |