US3864093A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High-temperature, wear-resistant coating
Assignee: Praxair ST Technology Inc
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Filing: 1972-11-17
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Granted: 1975-02-04
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Expires: 1992-11-17
Abstract
Abstract A high-temperature, wear-resistant coated article, and a process for making it, comprising a substrate having a coated layer of metal oxide particles, such as Al2O3, substantially uniformly dispersed in a metal alloy matrix wherein said alloy comprises essentially at least one first metal selected from the group of iron, cobalt and nickel, and at least one second metal selected from the group of aluminum, silicon and chromium.
Inventors
- 👤 Thomas A Wolfla
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:25
CPC Classifications
C; C23; C23C; C23C4/00; C23C4/04; C23C4/06; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/923; Y10S428/924; Y10S428/926; Y10T; Y10T428/00; Y10T428/12; Y10T428/12014; Y10T428/12028; Y10T428/12063; Y10T428/12139; Y10T428/12493; Y10T428/1266; Y10T428/12667; Y10T428/12674; Y10T428/12736; Y10T428/12743; Y10T428/1275; Y10T428/12757
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
40 words
The coated article of claim 1 wherein said substrate is selected from the group consisting of steel, stainless steel, iron base alloys, cobalt, cobalt base alloys, nickel, nickel base alloys, chromium, chromium base alloys, refractory metals and refractory-metal base alloys.
Claim 2
Dependent Claim
66 words
The coated article of claim 2 wherein said metal oxide particles are selected from a group consisting of aluminum oxide, stabilized zirconium oxide and chromium oxide; said metal alloy is selected from a group consisting of nickel base alloys, iron base alloys and cobalt base alloys, and said substrate is selected from a group consisting of nickel base alloys, cobalt base alloys and iron base alloys.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-02-03 | 1978-08-05 | 1979-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-03 | 1982-08-05 | 1983-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-03 | 1986-08-05 | 1987-02-04 | $7700.00 | Window Closed / Lapsed |