US3095316A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for coating carbonaceous articles with silicon dioxide
Assignee: Union Carbide Corp
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Filing: 1959-09-30
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Granted: 1963-06-25
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Expires: 1979-09-30
Abstract
No abstract record available.
Inventors
- 👤 Hartwig Jurgen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:30
CPC Classifications
C; C04; C04B; C04B41/00; C04B41/009; C04B41/45; C04B41/50; C04B41/5053; C04B41/5057; C04B41/5059; C04B41/80; C04B41/81; C04B41/85; C04B41/87; Y; Y10; Y10S; Y10S264/00; Y10S264/19; Y10T; Y10T428/00; Y10T428/30
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
100 words
A PROCESS FOR COATING CARBONACEOUS ARTICLES WITH SURFACE COATINGS OF SILICON CARBIDE, COMPRISING BRINGING SAID ARTICLE INTO INTIMATE CONTACT WITH A MIXTURE OF AT LEAST ONE METAL CARBIDE SELECTED FROM THE GROUP CONSISTING OF SILICON CARBIDE, TITANIUM CARBIDE, ZIRCONIUM CARBIDE HAFNIUM CARBIDE AND TANTALUM CARBIDE AND AT LEAST ONE POWDERED SOURCE OF SILICON SELECTED FROM THE GROUP CONSISTING OF SILICON METAL AND SILICON DIOXIDE; HEATING SAID ARTICLE AND THE SURROUNDING MIXTURE IN A SUITABLE CONTAINER TO TEMPERATURES RANGING FROM 1500 TO 2200*C., MAINTAINING SAID FINAL TEMPERATURE FOR A TIME NECESSARY FOR FORMATION OF A COATING, AND SLOWLY COOLING SAID ARTICLES.
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) | 1966-06-24 | 1966-12-24 | 1967-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-24 | 1970-12-24 | 1971-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-24 | 1974-12-24 | 1975-06-25 | $7700.00 | Window Closed / Lapsed |