US3365327A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vapor diffusion coating containing aluminum-chromium-silicon
Assignee: Union Carbide Corp
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Filing: 1965-04-14
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Granted: 1968-01-23
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Expires: 1985-04-14
Abstract
No abstract record available.
Inventors
- 👤 Robert B Puyear
- 👤 Jack H Holloway
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:45
CPC Classifications
C; C23; C23C; C23C10/00; C23C10/28; C23C10/34; C23C10/52; C23C10/54; C23C10/56; C22; C22C; C22C19/00; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9335; Y10S428/938; Y10T; Y10T428/00; Y10T428/12; Y10T428/12014; Y10T428/12028; Y10T428/12063; Y10T428/12139; Y10T428/12493
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
METHOD FOR DIFFUSION COATING METALLIC ARTICLES COMPRISING: (1) EMBEDDING THE ARTICLE TO BE COATED IN A PARTICULATED CHARGE MATERIAL CONSISTING ESSENTALLY OF ABOUT 4 TO 10 PERCENT ELEMENTAL ALUMINUM, ABOUT 10 TO 30 PERCENT ELEMENTAL CHROMIUM, ABOUT 58 TO 86 PERCENT SILICON CARBIDE AND ABOUT 0.2 TO 1 PERCENT OF A HALIDE CARRIER MATERIAL, AND (2) HEATING THE CHARGE MATERIAL AND EMBEDDED ARTICLE WITH THE EXCLUSION OF AIR AT AN ELEVATED TEMPERATURE FOR A TIME SUFFICIENT TO FORM AN ALUMINUM-CHROMIUMSILICON-CONTAINING COATING.
Claim 2
Dependent Claim
81 words
METHOD FOR DIFFUSION COATING METALLIC ARTICLES COMPRISING: (1) EMBEDDING THE ARTICLE TO BE COATED IN A PARTICULATED CHARGE MATERIAL CONSISTING ESSENTALLY OF ABOUT 4 TO 10 PERCENT ELEMENTAL ALUMINUM, ABOUT 10 TO 30 PERCENT ELEMENTAL CHROMIUM, ABOUT 58 TO 86 PERCENT SILICON CARBIDE AND ABOUT 0.2 TO 1 PERCENT OF A HALIDE CARRIER MATERIAL, AND (2) HEATING THE CHARGE MATERIAL AND EMBEDDED ARTICLE WITH THE EXCLUSION OF AIR AT AN ELEVATED TEMPERATURE FOR A TIME SUFFICIENT TO FORM AN ALUMINUM-CHROMIUMSILICON-CONTAINING COATING.
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) | 1971-01-22 | 1971-07-24 | 1972-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-22 | 1975-07-24 | 1976-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-22 | 1979-07-24 | 1980-01-23 | $7700.00 | Window Closed / Lapsed |