US3741824A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method to improve the weldability and formability of nickel-base superalloys
Assignee: RTX Corp
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Filing: 1970-10-29
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Granted: 1973-06-26
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Expires: 1990-10-29
Abstract
Abstract A PROCEDURE FOR IMPROVING THE CAPICITY OF THE ADVANCED NICKEL-BASE SUPERALLOYS TO BE WELDED WITHOUT CRACKING IS DESCRIBED. CONCURREATLY, THE PROCESS ALSO PROVIDES ENHANCED ROOM TEMPERATURE FORMABILITY. BASICALLY, THE PROCEDURE INVOLVES AN OVERAGING HEAT TREATMENT OF THE MATERIAL TO PRODUCE $ COARSE PRECIPITATE DISTRIBUTED THROUGHOUT THE ALLOY MISCROSTRUCTURE, A CONDITION OF LOW STRENGTH AND ENCHANCED ROOM TEMPERATURE DUCTILITY.
Inventors
- 👤 D Duvall
- 👤 W Owczarski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 03:01
CPC Classifications
C; C22; C22F; C22F1/00; C22F1/10; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; 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) | 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 |