US3794511A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coating process for a superalloy article
Assignee: Avco Corp
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Filing: 1971-10-22
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Granted: 1974-02-26
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Expires: 1991-10-22
Abstract
Abstract THE COATING OF NICKEL- AND COBALT-BASE ALLOY ARTICLES TO IMPROVE BOTH THERMAL FATIQUE AND SULFIDATION RESISTANCE OF SAID ARTICLES. THE COATING IS APPLIED BY PACK CEMENTATION IN AN INERT OR NON-REACTIVE ATMOSPHERE OR IN A VACUUM, USING AS A PACK POWDER AN ALLOY OF ALUMINUM AND ONE OR MORE RARE EARTH ELEMENTS.
Inventors
- 👤 S Baranow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 23:40
CPC Classifications
C; C23; C23C; C23C10/00; C23C10/28; C23C10/34; C23C10/52; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9335; Y10S428/941; Y10T; Y10T428/00; Y10T428/12; Y10T428/12458; Y10T428/12493; Y10T428/12736; Y10T428/1275; Y10T428/12771; Y10T428/12861; Y10T428/12944
Claims Analysis
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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) | 1977-02-25 | 1977-08-27 | 1978-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-25 | 1981-08-27 | 1982-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-25 | 1985-08-27 | 1986-02-26 | $7700.00 | Window Closed / Lapsed |