Patent US2684299A successfully refreshed from Google Patents.
US2684299A
Expired / Lapsed
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Cobalt base alloys and cast articles
Assignee: Union Carbide Corp
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Filing: 1949-11-02
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Granted: 1954-07-20
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Expires: 1969-11-02
Abstract
No abstract record available.
Inventors
- 👤 William O Binder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 09:41
CPC Classifications
C; C22; C22C; C22C19/00; C22C19/07
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
53 words
A CASTABLE COBALT-BASE ALLOY COMPOSED SUBSTANTIALLY OF 18% CHROMIUN; 10% NICKEL; 15% TUNGSTEN; UP TO 3% MOLYBDENUM DIRECTLY REPLACING AN EQUAL PROPORTION OF TUNGSTEN; UP TO 1% SILICON; 0.25% TO LESS THAN 2% MANGANESE; 0.35% TO 0.50% CARBON; UP TO 0.2% NITROGEN; UP TO 0.4% BORON; UP TO 3% IRON; THE REMAINDER COBALT.
Claim 2
Dependent Claim
53 words
A CASTABLE COBALT-BASE ALLOY COMPOSED SUBSTANTIALLY OF 18% CHROMIUN; 10% NICKEL; 15% TUNGSTEN; UP TO 3% MOLYBDENUM DIRECTLY REPLACING AN EQUAL PROPORTION OF TUNGSTEN; UP TO 1% SILICON; 0.25% TO LESS THAN 2% MANGANESE; 0.35% TO 0.50% CARBON; UP TO 0.2% NITROGEN; UP TO 0.4% BORON; UP TO 3% IRON; THE REMAINDER COBALT.
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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) | 1957-07-19 | 1958-01-18 | 1958-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-07-19 | 1962-01-18 | 1962-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-07-19 | 1966-01-18 | 1966-07-20 | $7700.00 | Window Closed / Lapsed |