US2515775A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High-temperature cobalt alloy
Assignee: General Electric Co
•
Filing: 1947-07-15
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Granted: 1950-07-18
•
Expires: 1967-07-15
Abstract
No abstract record available.
Inventors
- 👤 Epremian Edward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:07
CPC Classifications
C; C22; C22C; C22C19/00; C22C19/07
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
57 words
A HEAT AND CORROSION-RESISTANT ALLOY CHARACTERIZED BY GOOD RUPTURE STRENGTH AND DUCTILITY AT ELEVATED TEMPERATURES, SAID ALLOY CONTAINING 19-21% CHROMIUM, 4-6% NICKEL, 3.5-4.5% MOLYBDENUM, 3.5-4.5% TUNGSTEN, FROM 0.25 TO 0.7% CARBON, FROM 0.2 TO 1% TITANIUM, 0.02 TO 0.1% BORON, NOT OVER 4% IRON BALANCE COBALT EXCEPT FOR MANGANESE AND SILICON IN DEOXIDIZING QUANTITIES LESS THAN 1%.
Claim 2
Dependent Claim
57 words
A HEAT AND CORROSION-RESISTANT ALLOY CHARACTERIZED BY GOOD RUPTURE STRENGTH AND DUCTILITY AT ELEVATED TEMPERATURES, SAID ALLOY CONTAINING 19-21% CHROMIUM, 4-6% NICKEL, 3.5-4.5% MOLYBDENUM, 3.5-4.5% TUNGSTEN, FROM 0.25 TO 0.7% CARBON, FROM 0.2 TO 1% TITANIUM, 0.02 TO 0.1% BORON, NOT OVER 4% IRON BALANCE COBALT EXCEPT FOR MANGANESE AND SILICON IN DEOXIDIZING QUANTITIES LESS THAN 1%.
References Cited (Backward Citations)
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Cited
US1489116A
Cited
GB510154A
Cited
US2126750A
Cited
US2156757A
Cited
US2214810A
Cited
US2171744A
Cited
US2381459A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-07-17 | 1954-01-16 | 1954-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-07-17 | 1958-01-16 | 1958-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-07-17 | 1962-01-16 | 1962-07-18 | $7700.00 | Window Closed / Lapsed |