US2949355A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High temperature alloy
Assignee: Allegheny Ludlum Steel Corp
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Filing: 1955-07-27
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Granted: 1960-08-16
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Expires: 1975-07-27
Abstract
No abstract record available.
Inventors
- 👤 Wasil W Dyrkacz
- 👤 Edward E Reynolds
- 👤 Richard R Macfarlane
- 👤 Richard K Pitler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:34
CPC Classifications
C; C22; C22C; C22C38/00; C22C38/18; C22C38/38
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
44 words
A PRECIPITATION HARDENABLE AUSTENITIC IRON BASE ALLOY CONSISTING OF 0.03% TO 0.35% CARBON, 0.20% TO 0.75% SILICON, 16.0% TO 20.0% MANGANESE, 11.5% TO 13.5% CHRONIUM, 2.0% TO 4.0% MOLYBDENUM, 0.60% TO 0.95% VANADIUM, 3.10% TO 0.25% NITROGEN AND THE BALANCE IRON WITH INCIDENTAL IMPURITIES.
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) | 1963-08-16 | 1964-02-15 | 1964-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-16 | 1968-02-15 | 1968-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-16 | 1972-02-15 | 1972-08-16 | $7700.00 | Window Closed / Lapsed |