Patent US3432815A successfully refreshed from Google Patents.
US3366478A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cobalt-base sheet alloy
Assignee: Lockheed Martin Corp
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Filing: 1965-07-21
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Granted: 1968-01-30
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Expires: 1985-07-21
Abstract
No abstract record available.
Inventors
- 👤 Harold L Wheaton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:58
CPC Classifications
C; C22; C22C; C22C19/00; C22C19/07
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
114 words
A WORKABLE ALLOY HAVING EXCELLENT RESISTANCE TO THE COMBINED EFFECTS OF STRESS AND OXIDATION COMPRISING IN WEIGHT PERCENT ABOUT 0.03% TO ABOUT 0.20% CARBON, ABOUT 15% TO ABOUT 30% CHROMIUM, ABOUT 10% TO ABOUT 30% NICKEL, ABOUT 2% TO ABOUT 12% TANTALUM, ABOUT 0.01% TO ABOUT 0.5% ZIRCONIUM, UP TO ABOUT 3% TUNGSTEN, UP TO ABOUT 3% MOLYBDENUM UP TO ABOUT 2% COLUMBIUM, UP TO ABOUT 10% IRON, UP TO ABOUT 0.2, TITANIUM, UP TO ABOUT 0.2% HAFNIUM, UP TO ABOUT 0.2% BORON, UP TO ABOUT 1.5% SILICON, UP TO ABOUT 1.5% MANGANESE, UP TO ABOUT 0.5, ALUMINUM, UP TO ABOUT 0.2% RARE EARTH METALS, WITH THE BALANCE OF THE ALLOY BEING ESSENTIALLY COBALT.
Claim 2
Dependent Claim
114 words
A WORKABLE ALLOY HAVING EXCELLENT RESISTANCE TO THE COMBINED EFFECTS OF STRESS AND OXIDATION COMPRISING IN WEIGHT PERCENT ABOUT 0.03% TO ABOUT 0.20% CARBON, ABOUT 15% TO ABOUT 30% CHROMIUM, ABOUT 10% TO ABOUT 30% NICKEL, ABOUT 2% TO ABOUT 12% TANTALUM, ABOUT 0.01% TO ABOUT 0.5% ZIRCONIUM, UP TO ABOUT 3% TUNGSTEN, UP TO ABOUT 3% MOLYBDENUM UP TO ABOUT 2% COLUMBIUM, UP TO ABOUT 10% IRON, UP TO ABOUT 0.2, TITANIUM, UP TO ABOUT 0.2% HAFNIUM, UP TO ABOUT 0.2% BORON, UP TO ABOUT 1.5% SILICON, UP TO ABOUT 1.5% MANGANESE, UP TO ABOUT 0.5, ALUMINUM, UP TO ABOUT 0.2% RARE EARTH METALS, WITH THE BALANCE OF THE ALLOY BEING ESSENTIALLY COBALT.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-01-29 | 1971-07-31 | 1972-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-29 | 1975-07-31 | 1976-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-29 | 1979-07-31 | 1980-01-30 | $7700.00 | Window Closed / Lapsed |