US3594158A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Strong,tough,corrosion resistant maraging steel
Assignee: Huntington Alloys Corp
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Filing: 1967-04-05
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Granted: 1971-07-20
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Expires: 1987-04-05
Abstract
Abstract A MARGAGING STAINLESS STEEL CONTAINS CHROMIUM, MOLYBDENUM, NICKEL, ALUMINUM AND/OR TITANIUM, AND CARBON AS ESSENTIAL CONSTITUENTS, THE ALUMINUM AND TITANIUM BEING SPECIALLY CONTROLLED. A SPECIAL RELATIONSHIP IS GIVEN IN RESPECT OF THE ELEMENTS CHROMIUM, MOLYBDENUM, AND NICKEL WHEREBY VARIOUS PROCESSING TREATMENTS ARE RENDERED UNNECESSARY. THE STEELS ARE USEFUL IN THE PRODUCTION OF PRESSURE VESSELS AND AN ILLUSTRATIVE STEEL CONTAINS ABOUT 11% CHROMIUM, 2% MOLYBDENUM, 10% NICKEL, 0.25% ALUMINUM, 0.2% TITANIUM, UP TO 0.02% CARBON, THE BALANCE BEING PRINCIPALLY IRON.
Inventors
- 👤 Edward Peter Sadowski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 02:58
CPC Classifications
C; C22; C22C; C22C38/00; C22C38/18; C22C38/40; C22C38/44; C22C38/50
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) | 1974-07-19 | 1975-01-18 | 1975-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-19 | 1979-01-18 | 1979-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-19 | 1983-01-18 | 1983-07-20 | $7700.00 | Window Closed / Lapsed |