US2542266A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat and creep resisting nickel alloy castings
Assignee: Huntington Alloys Corp
•
Filing: 1950-04-25
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Granted: 1951-02-20
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Expires: 1970-04-25
Abstract
No abstract record available.
Inventors
- 👤 Talbot Albert Mccoy
- 👤 Furman Donald Everett
- 👤 Brophy Gerald Robert
- 👤 Pilling Norman Boden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 08:56
CPC Classifications
C; C22; C22C; C22C19/00; C22C19/03; C22C19/05; C22C19/058
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
AN ARTICLE OF MANUFACTURE SUBJECTED IN USE TO STRESS AT ELEVATED SERVICE TEMPERATURES ABOVE ABOUT 1300* F. COMPRISED OF A HEAT-TREATED ALLOY CASTING CONTAINING ABOUT 45% TO 55% NICKEL, ABOUT 17% TO 23% CHROMIUM, ABOUT 0.25% TO 1% COLUMBIUM, ABOUT 0.05% TO 0.5% TITANIUM, ABOUT 0.02% TO 0.03% CALCIUM, ABOUT 0.3% TO 0.6% CARBON AND THE BALANCE SUBSTANTIALLY IRON; AND HAVING A HEAT-TREATED STRUCTURE CONTAINING AN AUSTENITE MATRIX SUBSTANTIALLY DEVOID OF FERRITE, A SUBSTANTIAL AMOUNT OF FINE SECONDARY PRECIPITATE CRITICALLY DISPERSED THROUGHOUT SAID MATRIX AND SOME RELATIVELY LARGE PRIMARY PRECIPITATE SCATTERED THROUGHOUT SAID MATRIX.
Claim 2
Dependent Claim
94 words
AN ARTICLE OF MANUFACTURE SUBJECTED IN USE TO STRESS AT ELEVATED SERVICE TEMPERATURES ABOVE ABOUT 1300* F. COMPRISED OF A HEAT-TREATED ALLOY CASTING CONTAINING ABOUT 45% TO 55% NICKEL, ABOUT 17% TO 23% CHROMIUM, ABOUT 0.25% TO 1% COLUMBIUM, ABOUT 0.05% TO 0.5% TITANIUM, ABOUT 0.02% TO 0.03% CALCIUM, ABOUT 0.3% TO 0.6% CARBON AND THE BALANCE SUBSTANTIALLY IRON; AND HAVING A HEAT-TREATED STRUCTURE CONTAINING AN AUSTENITE MATRIX SUBSTANTIALLY DEVOID OF FERRITE, A SUBSTANTIAL AMOUNT OF FINE SECONDARY PRECIPITATE CRITICALLY DISPERSED THROUGHOUT SAID MATRIX AND SOME RELATIVELY LARGE PRIMARY PRECIPITATE SCATTERED THROUGHOUT SAID MATRIX.
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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) | 1954-02-19 | 1954-08-21 | 1955-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-02-19 | 1958-08-21 | 1959-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-02-19 | 1962-08-21 | 1963-02-20 | $7700.00 | Window Closed / Lapsed |