US2938787A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nickel-base alloy containing boron
Assignee: Stainless Foundry and Engineering Inc
•
Filing: 1959-07-30
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Granted: 1960-05-31
•
Expires: 1979-07-30
Abstract
No abstract record available.
Inventors
- 👤 Walter K Boyd
- 👤 Merritt E Langston
- 👤 Thomas E Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:15
CPC Classifications
C; C22; C22C; C22C19/00; C22C19/03; C22C19/05; C22C19/051; C22C19/053; C22C19/055
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
12 words
025 TO 0.55 PERCENT BY WEIGHT BORON, AND THE BALANCE ESSENTIALLY NICKEL.
Claim 2
Dependent Claim
37 words
A HARD, CORROSION-RESISTING ALLOY CONSISTING ESSENTIALLY OF 26 TO 30 PERCENT BY WEIGHT OF CHROMIUM 7.5 TO 9.0 PERCENT BY WEIGHT OF MOLYBDENUM, 4.0 TO 6.5 PERCENT BY WEIGHT COPPER, 1.5 TO 6.5 PERCENT BY WEIGHT SILICON,
References Cited (Backward Citations)
US1115239A
Cited
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 |