US3065069A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nonmagnetic generator ring forgings and steel therefor
Assignee: United States Steel Corp
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Filing: 1960-07-18
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Granted: 1962-11-20
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Expires: 1980-07-18
Abstract
No abstract record available.
Inventors
- 👤 Samuel J Manganello
- 👤 Matti H Pakkala
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 01:58
CPC Classifications
C; C22; C22C; C22C38/00; C22C38/18; C22C38/38
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
50 words
AN AUSTENITIC STEEL CHARACTERIZED BY GOOD DUCTILITY, COLD WORKABILITY AND A GRAIN SIZE NO LARGER THAN ASTM #4, SAID STEEL CONTAINING 0.45 TO 0.60% CARBON, 17.50 TO 19.50% MAGANESE .20 TO .60% SILICON, 4.00 TO 5.00% CHROMIUM, 0.06 TO 0.12% NITROGEN AND 0.25 TO 0.55% COLUMBIUM, BALANCE IRON AND IMPURITIES.
References Cited (Backward Citations)
GB584732A
Cited
US2789049A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-11-19 | 1966-05-21 | 1966-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-11-19 | 1970-05-21 | 1970-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-11-19 | 1974-05-21 | 1974-11-20 | $7700.00 | Window Closed / Lapsed |