US2521273A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nickel base alloy
Assignee: Union Carbide Corp
•
Filing: 1948-04-15
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Granted: 1950-09-05
•
Expires: 1968-04-15
Abstract
No abstract record available.
Inventors
- 👤 William A Wissler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 06:16
CPC Classifications
C; C22; C22C; C22C19/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
59 words
AN ALLOY CONTAINING 5% TO 18% SILICON; 5% TO 30% COBALT; 10% TO 30% COPPER; UP TO 15% CHROMIUM; UP TO 15% IRON; REMAINDER NICKEL, THE NICKEL CONTENT BEING NOT LESS THAN 35% AND NOT EXCEEDING 65%, THE SUM OF CHROMIUM AND IRON NOT EXCEEDING 20% AND THE SUM OF NICKEL AND IRON NOT EXCEEDING 65% OF THE ALLOY.
Claim 2
Dependent Claim
59 words
AN ALLOY CONTAINING 5% TO 18% SILICON; 5% TO 30% COBALT; 10% TO 30% COPPER; UP TO 15% CHROMIUM; UP TO 15% IRON; REMAINDER NICKEL, THE NICKEL CONTENT BEING NOT LESS THAN 35% AND NOT EXCEEDING 65%, THE SUM OF CHROMIUM AND IRON NOT EXCEEDING 20% AND THE SUM OF NICKEL AND IRON NOT EXCEEDING 65% OF THE ALLOY.
References Cited (Backward Citations)
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Cited
US1203555A
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US1762871A
Cited
CH155829A
Cited
US2222472A
Cited
US2245566A
Cited
US2309136A
Cited
US2355581A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-09-04 | 1954-03-06 | 1954-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-09-04 | 1958-03-06 | 1958-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-09-04 | 1962-03-06 | 1962-09-05 | $7700.00 | Window Closed / Lapsed |