US2996379A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cobalt-base alloy
Assignee: Union Carbide Corp
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Filing: 1958-12-04
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Granted: 1961-08-15
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Expires: 1978-12-04
Abstract
No abstract record available.
Inventors
- 👤 William H Faulkner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 21:46
CPC Classifications
C; C22; C22C; C22C19/00; C22C19/07
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
118 words
A COBALT-BASE ALLOY CHARACTERIZED BY IMPROVED STRESS-RUPTURE STRENGTH AT TEMPERATURES OF ABOUT 1700*F., SAID ALLOY CONSISTING ESSENTIALLY OF BETWEEN 15 AND 25 PERCENT BY WEIGHT CHROMIUM, BETWEEN 10 AND 15 PERCENT BY WEIGHT TUNGSTEN, UP TO 5 PERCENT BY WEIGHT MOLYBDENUM, UP TO 3 PERCENT BY WEIGHT IRON, UP TO ABOUT 1 PERCENT BY WEIGHT NICKEL, UP TO 0.70 PERCENT BY WEIGHT CARBON, UP TO 0.20 PERCENT BY WEIGHT BORON, UP TO 0.04 PERCENT BY WEIGHT NITROGEN, MANGANESE AND SILICON IN AMOUNTS UP TO 2 PERCENT BY WEIGHT OF EACH, AT LEAST ONE MODIFYING THE METAL SELECTED FROM THE GROUP CONSISTING OF TITANIUM, MAGNESIUM AND ZIRCONIUM, THE MINIMUM AMOUNT OF MODIFYING METAL BEING DEFINED BY THE FOLLOWING EQUATION
Claim 2
Dependent Claim
118 words
A COBALT-BASE ALLOY CHARACTERIZED BY IMPROVED STRESS-RUPTURE STRENGTH AT TEMPERATURES OF ABOUT 1700*F., SAID ALLOY CONSISTING ESSENTIALLY OF BETWEEN 15 AND 25 PERCENT BY WEIGHT CHROMIUM, BETWEEN 10 AND 15 PERCENT BY WEIGHT TUNGSTEN, UP TO 5 PERCENT BY WEIGHT MOLYBDENUM, UP TO 3 PERCENT BY WEIGHT IRON, UP TO ABOUT 1 PERCENT BY WEIGHT NICKEL, UP TO 0.70 PERCENT BY WEIGHT CARBON, UP TO 0.20 PERCENT BY WEIGHT BORON, UP TO 0.04 PERCENT BY WEIGHT NITROGEN, MANGANESE AND SILICON IN AMOUNTS UP TO 2 PERCENT BY WEIGHT OF EACH, AT LEAST ONE MODIFYING THE METAL SELECTED FROM THE GROUP CONSISTING OF TITANIUM, MAGNESIUM AND ZIRCONIUM, THE MINIMUM AMOUNT OF MODIFYING METAL BEING DEFINED BY THE FOLLOWING EQUATION
References Cited (Backward Citations)
US2684299A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-08-14 | 1965-02-13 | 1965-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-14 | 1969-02-13 | 1969-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-14 | 1973-02-13 | 1973-08-15 | $7700.00 | Window Closed / Lapsed |