US2938786A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nickel base alloys containing boron and silicon
Assignee: Stainless Foundry and Engineering Inc
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Filing: 1959-07-29
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Granted: 1960-05-31
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Expires: 1979-07-29
Abstract
No abstract record available.
Inventors
- 👤 Thomas E Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 01:57
CPC Classifications
C; C22; C22C; C22C19/00; C22C19/03; C22C19/05; C22C19/051; C22C19/055
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
61 words
A NICKEL BASE ALLOY CONTAINING ABOUT 19 TO 26 PERCENT CHROMIUM, 5 TO 9 PERCENT MOLYBDENUM, 4 TO 7 PERCENT COPPER, UP TO 10 PERCENT IRON, UP TO 1.5 PERCENT MANGANESE, UP TO 0.3 PERCENT CARBON, 1.5 TO 7.5 PERCENT SILICON, 0.025 TO 0.55 PERCENT BORON, AND THE BALANCE SUBSTANTIALLY NICKEL CHARACTERIZED BY HIGH CORROSION RESISTANCE AND HIGH HARDNESS WITHOUT BRITTLENESS.
Claim 2
Dependent Claim
61 words
A NICKEL BASE ALLOY CONTAINING ABOUT 19 TO 26 PERCENT CHROMIUM, 5 TO 9 PERCENT MOLYBDENUM, 4 TO 7 PERCENT COPPER, UP TO 10 PERCENT IRON, UP TO 1.5 PERCENT MANGANESE, UP TO 0.3 PERCENT CARBON, 1.5 TO 7.5 PERCENT SILICON, 0.025 TO 0.55 PERCENT BORON, AND THE BALANCE SUBSTANTIALLY NICKEL CHARACTERIZED BY HIGH CORROSION RESISTANCE AND HIGH HARDNESS WITHOUT BRITTLENESS.
References Cited (Backward Citations)
US2597495A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-05-31 | 1963-11-30 | 1964-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-31 | 1967-11-30 | 1968-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-31 | 1971-11-30 | 1972-05-31 | $7700.00 | Window Closed / Lapsed |