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US3573901A
Expired / Lapsed
US
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Alloys resistant to stress-corrosion cracking in leaded high purity water
Assignee: Huntington Alloys Corp
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Filing: 1968-07-10
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Granted: 1971-04-06
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Expires: 1988-07-10
Abstract
Abstract A HIGH NICKEL ALLOY CONTAINING SUBSTANTIAL BUT CONTROLLED AMOUNTS OF CHROMIUM, E.G., 28%, AND ADVANTAGEOUSLY IRON, HABING IMPROVED RESISTANCE TO STRESS-CORROSION CRACKING WHEN USED IN HIGH PURITY WATER ENVIRONMENTS CONTAMINATED BY LEAD. IRON IS BENEFICIAL, PARTICULARLY IN MINIMIZING SCALE FORMATION. OTHER CONSTITUENTS CAN BE UTILIZED TO ADVANTAGE, INCLUDING COLUMBIUM, MOLYBDENUM, VANADIUM, AND TUNGSTEN.
Inventors
- 👤 George Economy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 11:02
CPC Classifications
C; C22; C22C; C22C19/00; C22C19/03; C22C19/05; C22C19/051; C22C19/053; Y; Y10; Y10S; Y10S376/00; Y10S376/90
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) | 1974-04-05 | 1974-10-05 | 1975-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-04-05 | 1978-10-05 | 1979-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-04-05 | 1982-10-05 | 1983-04-06 | $7700.00 | Window Closed / Lapsed |