Patent US3595712A successfully refreshed from Google Patents.
US3595712A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Processing of aluminide-coated nickel-base superalloys
Assignee: RTX Corp
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Filing: 1968-10-08
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Granted: 1971-07-27
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Expires: 1988-10-08
Abstract
Abstract THE FATIGUE PROPERITIES OF THE ALUMINIDE-COATED NICKELBASE SUPERALLOYS, PARTICULARLY IN GAS TURBINE ENGINE APPLICATIONS, ARE IMPROVED BY PROCESSING THE COATED ARTICLE TO DECREASE THE BRITTLENESS OF THE COATING, PARTICULARLY THROUGH THE USE OF A HIGH TEMPERATURE ANNEAL BETWEEN THE COATING AND THE SUBSTRATE PRECIPITATION HEAT TREATMENTS. CONCURRENTLY, THE OVERALL COATING PROCESS OFFERS INCREASED SIMPLICITY OF PROCESSING WITH CONSEQUENT ECONOMIC ADVANTAGES.
Inventors
- 👤 Donald H Boone
- 👤 Cornelius P Sullivan
- 👤 Clifford H Wells
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 17:57
CPC Classifications
C; C23; C23C; C23C10/00; C23C10/60; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12736; Y10T428/1275; Y10T428/12771; Y10T428/12861; Y10T428/12944
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) | 1974-07-26 | 1975-01-25 | 1975-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-26 | 1979-01-25 | 1979-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-26 | 1983-01-25 | 1983-07-27 | $7700.00 | Window Closed / Lapsed |