US3650709A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ferritic, austenitic, martensitic stainless steel
Assignee: Outokumpu Stainless AB
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Filing: 1969-10-13
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Granted: 1972-03-21
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Expires: 1989-10-13
Abstract
Abstract Rollable and weldable stainless steel with a high degree of tension and toughness within a wide range of temperatures both in a hardened and a tough-hardened condition comprising 5-15 percent by weight of ferrite, 10-40 percent by weight of austenite and the remainder tempered martensite.
Inventors
- 👤 Lars Johan Gustaf Morsing
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 17:07
CPC Classifications
C; C22; C22C; C22C38/00; C22C38/18; C22C38/40; C22C38/44; B; B23; B23K; B23K35/00; B23K35/22; B23K35/24; B23K35/30; B23K35/3053; B23K35/308; B23K35/3086; C22C38/001; Y; Y10; Y10S; Y10S376/00; Y10S376/90; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12639; Y10T428/12646; Y10T428/12653; Y10T428/12771; Y10T428/12861; Y10T428/12951; Y10T428/12972; Y10T428/12979
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
11 words
Steel according to claim 1 wherein the steel contains: Percent 0.030-0.040Carbon0.3-0.5Silicon0.6-1.0Manganese16-17Chromium4.5-5.5Nickel0.8-1.3Molybdenum0.020-0.050Nitrogen
Claim 2
Dependent Claim
17 words
Welded constructions produced from the steel according to claim 1, intended to be exposed to neutron irradiation.
References Cited (Backward Citations)
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US3102025A
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US3253966A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-03-21 | 1975-09-20 | 1976-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-03-21 | 1979-09-20 | 1980-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-03-21 | 1983-09-20 | 1984-03-21 | $7700.00 | Window Closed / Lapsed |