US3741791A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Slurry coating superalloys with fecraiy coatings
Assignee: RTX Corp
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Filing: 1971-08-05
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Granted: 1973-06-26
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Expires: 1991-08-05
Abstract
Abstract A SLURRY COATING PARTICULARLY FOR THENICKLE-BASE AND COBALT-BASE ALLOYS, WHICH COMPRISES, BY WEIGHT, 20-30 PERCENT CHROMIUM, 8-12 PERCENT ALUMINUM, 10-16 PERCENT SILICON, 0.1-3 PERCENT YTTRIUM, SCANDIUM OR LANTHANUM, BALANCE IRON IS APPLIED TO A SUTABLE SUBSTRATE AND DIFFUSION HEAT TREATED TO PROVIDE OXIDATION RESISTANCE THERETO.
Inventors
- 👤 D Maxwell
- 👤 J Gabriel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:20
CPC Classifications
C; C23; C23C; C23C10/00; C23C10/28; C23C10/30; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12014; Y10T428/12028; Y10T428/12063; Y10T428/12493; Y10T428/12771; Y10T428/12861; Y10T428/12937
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) | 1976-06-25 | 1976-12-25 | 1977-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-25 | 1980-12-25 | 1981-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-25 | 1984-12-25 | 1985-06-26 | $7700.00 | Window Closed / Lapsed |