US2941882A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Titanium-hardened nickel-cobalt-iron alloys
Assignee: Huntington Alloys Corp
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Filing: 1958-10-21
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Granted: 1960-06-21
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Expires: 1978-10-21
Abstract
No abstract record available.
Inventors
- 👤 Arthur W Franklin
- 👤 John B Barber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:56
CPC Classifications
C; C22; C22C; C22C19/00; C22C19/007
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
75 words
AN AGE-HARDENABLE ALLOY OF LOW THERMAL EXPANSION HAVING A 0.1% PROOF STRESS IN EXCESS OF ABOUT 20 TONS PER SQUARE INCH IN THE AGE-HARDENED CONDITION AT TEMPERATURES UP TO ABOUT 500*C. CONTAINING ABOUT 22% TO ABOUT 36% NICKEL, ABOUT 5% TO ABOUT 30% COBALT, UP TO ABOUT 0.05% CARBON, UP TO 2% COPPER, UP TO ABOUT 1% EACH OF SILICON, MOLYBDENUM AND NIOBIUM, AN AMOUNT OF TITANIUM EQUAL TO ABOUT 1.25% TO ABOUT 1.75% PLUS
References Cited (Backward Citations)
CA486768A
Cited
US2266481A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-21 | 1963-12-21 | 1964-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-21 | 1967-12-21 | 1968-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-21 | 1971-12-21 | 1972-06-21 | $7700.00 | Window Closed / Lapsed |