US3834901A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alloy composed of iron,nickel,chromium and cobalt
Assignee: Isuzu Motors Ltd
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Filing: 1972-11-06
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Granted: 1974-09-10
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Expires: 1992-11-06
Abstract
Abstract AN ALLOY COMPOSED OF IRON, NICKEL, CHROMIUM AND COBALT, RESISTANT TO THERMAL FATIGUE, CRACKING AND CORROSION, COMPRISING BY WEIGHT PERCENT. CARBON 0.05-1.0 SILICON 0.1-3.0 MANGANESE 0.1-3.0 NICKEL 1.0-19 CHROMIUM 26-35 MOLYBDENUM 0.1-3.0 TUNGSTEN 0.1-0.6 NIOBIUM 0.1-0.45 NITROGEN 0.03-0.3 COBALT 9-30 BORON 0.005-0.15 BALANCE OF IRON EXCEPT FOR INCIDENTAL IMPURITIES
Inventors
- 👤 S Hisamatsu
- 👤 M Kamiya
- 👤 M Naya
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 01:59
CPC Classifications
C; C22; C22C; C22C38/00; C22C38/18; C22C38/40; C22C38/52
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-09-09 | 1978-03-11 | 1978-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-09 | 1982-03-11 | 1982-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-09 | 1986-03-11 | 1986-09-10 | $7700.00 | Window Closed / Lapsed |