US3617397A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cast nickel-base alloy
Assignee: RTX Corp
•
Filing: 1969-02-19
•
Granted: 1971-11-02
•
Expires: 1989-02-19
Abstract
Abstract There is disclosed herein a cast nickel-base alloy having outstanding utility in gas turbine engine applications, particularly as directionally solidified, at a composition consisting essentially of, by weight, 17.5-18.5% molybdenum, 7.75-8.25% aluminum, up to 0.05% carbon, balance nickel.
Inventors
- 👤 Douglas H Maxwell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:12
CPC Classifications
C; C30; C30B; C30B21/00; C30B21/02; C22; C22C; C22C19/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
31 words
A nickel-base alloy directionally solidified casting of the columnar-grain or monocrystal type which consists essentially of, by weight, 17.5-18.5 percent molybdenum, 7.75-8.25 percent aluminum, up to 0.05 percent carbon, balance nickel.
References Cited (Backward Citations)
US2542962A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-11-01 | 1975-05-03 | 1975-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-01 | 1979-05-03 | 1979-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-01 | 1983-05-03 | 1983-11-02 | $7700.00 | Window Closed / Lapsed |