US2908565A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High temperature alloy
Assignee: Continental Copper and Steel Industries Inc
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Filing: 1956-08-29
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Granted: 1959-10-13
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Expires: 1976-08-29
Abstract
No abstract record available.
Inventors
- 👤 John A Nelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:21
CPC Classifications
C; C22; C22C; C22C38/00; C22C38/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
A FREE MACHINING PRECIPITATION HARDENING COBALTCOPPER ALLOY DIE STEEL, AND CAPABLE OF BEING POLISHED TO HIGH MIRROR FINISH AND CAPABLE OF BEING AGED AND TEMPERED AT ABOUT OR HAVE 1,000* F. TO A ROCKWELL C HARDNESS OF ABOUT 50, COMPOSED PRINCIPALLY OF IRON ALLOYED WITH COBALT, NICKEL, CARBON AND COPPER, THE COBALT AND COPPER TOGETHER RANGING FROM 2 TO 15% AND THE COBALT BEING PRESENT IN ABOUT THREE TIMES THE QUANTITY OF THE COPPER, NICKEL BEING INCLUDED IN AMOUNT RANGING UP TO ABOUT ONE-HALF THE PERCENTAGE OF THE COPPER, BALANCE PRINCIPALLY IRON.
Claim 2
Dependent Claim
92 words
A FREE MACHINING PRECIPITATION HARDENING COBALTCOPPER ALLOY DIE STEEL, AND CAPABLE OF BEING POLISHED TO HIGH MIRROR FINISH AND CAPABLE OF BEING AGED AND TEMPERED AT ABOUT OR HAVE 1,000* F. TO A ROCKWELL C HARDNESS OF ABOUT 50, COMPOSED PRINCIPALLY OF IRON ALLOYED WITH COBALT, NICKEL, CARBON AND COPPER, THE COBALT AND COPPER TOGETHER RANGING FROM 2 TO 15% AND THE COBALT BEING PRESENT IN ABOUT THREE TIMES THE QUANTITY OF THE COPPER, NICKEL BEING INCLUDED IN AMOUNT RANGING UP TO ABOUT ONE-HALF THE PERCENTAGE OF THE COPPER, BALANCE PRINCIPALLY IRON.
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) | 1962-10-12 | 1963-04-13 | 1963-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-12 | 1967-04-13 | 1967-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-12 | 1971-04-13 | 1971-10-13 | $7700.00 | Window Closed / Lapsed |