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US2662010A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cast tool steel
Assignee: General Electric Co
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Filing: 1952-03-29
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Granted: 1953-12-08
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Expires: 1972-03-29
Abstract
No abstract record available.
Inventors
- 👤 Robert D Ahles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:14
CPC Classifications
C; C22; C22C; C22C38/00; C22C38/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
51 words
A CAST STEEL ALLOY CONSISTING ESSENTIALLY, BY WEIGHT, OF FROM 1.5 TO 2.25 PER CENT CARBON, ABOUT 0.03 TO 0.2 PER CENT MAGNESIUM, FROM 0 TO 5 PER CENT CHROMIUM, FROM 4 TO 6 PER CENT OF EACH OF THE ELEMENTS TUNGSTEN, MOLYBDENUM, COBALT AND VANADIUM, WITH THE BALANCE ESSENTIALLY IRON.
Claim 2
Dependent Claim
51 words
A CAST STEEL ALLOY CONSISTING ESSENTIALLY, BY WEIGHT, OF FROM 1.5 TO 2.25 PER CENT CARBON, ABOUT 0.03 TO 0.2 PER CENT MAGNESIUM, FROM 0 TO 5 PER CENT CHROMIUM, FROM 4 TO 6 PER CENT OF EACH OF THE ELEMENTS TUNGSTEN, MOLYBDENUM, COBALT AND VANADIUM, WITH THE BALANCE ESSENTIALLY IRON.
References Cited (Backward Citations)
US2147121A
Cited
US2516524A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-12-07 | 1957-06-08 | 1957-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-12-07 | 1961-06-08 | 1961-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-12-07 | 1965-06-08 | 1965-12-08 | $7700.00 | Window Closed / Lapsed |