US2524661A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alloy having high elastic strengths
Assignee: Elgin National Watch Co
•
Filing: 1947-05-03
•
Granted: 1950-10-03
•
Expires: 1967-05-03
Abstract
No abstract record available.
Inventors
- 👤 Oscar E Harder
- 👤 Dimon A Roberts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:08
CPC Classifications
C; C22; C22C; C22C19/00; C22C19/07
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
AN ALLOY CONSISTING ESSENTIALLY OF CARBON UP TO 0.30%, BERYILIUM FROM 0.01 TO 0.09%, MANGANESE UP TO 3.0%, NICKEL FROM 5 TO 30%, IRON UP TO 18%, WITH THE SUM OF THE NICKEL, IRON, AND MANGANESE BEING 20 TO 50%, AND THE REMAINDER COBALT, CHROMIUM, AND MOLYBDENUM, WITH THE COBALT FROM 20 TO 50%, THE CHROMIUM 15 TO 30%, AND THE MOLYBDENUM 1 TO 10%, AND THE SUM OF THE CHROMIUM AND MOLYBDENUM BEING 21 TO 37%, SAID ALLOY HAVING IN SOLUTION-ANNEALED CONDITION A HARDNESS BELOW 300 (VICKERS).
Claim 2
Dependent Claim
88 words
AN ALLOY CONSISTING ESSENTIALLY OF CARBON UP TO 0.30%, BERYILIUM FROM 0.01 TO 0.09%, MANGANESE UP TO 3.0%, NICKEL FROM 5 TO 30%, IRON UP TO 18%, WITH THE SUM OF THE NICKEL, IRON, AND MANGANESE BEING 20 TO 50%, AND THE REMAINDER COBALT, CHROMIUM, AND MOLYBDENUM, WITH THE COBALT FROM 20 TO 50%, THE CHROMIUM 15 TO 30%, AND THE MOLYBDENUM 1 TO 10%, AND THE SUM OF THE CHROMIUM AND MOLYBDENUM BEING 21 TO 37%, SAID ALLOY HAVING IN SOLUTION-ANNEALED CONDITION A HARDNESS BELOW 300 (VICKERS).
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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) | 1953-10-02 | 1954-04-03 | 1954-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-10-02 | 1958-04-03 | 1958-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-10-02 | 1962-04-03 | 1962-10-03 | $7700.00 | Window Closed / Lapsed |