US2859138A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition and method for coating a ceramic body
Assignee: Individual
•
Filing: 1953-09-30
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Granted: 1958-11-04
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Expires: 1973-09-30
Abstract
No abstract record available.
Inventors
- 👤 Melbourne K Blanchard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:19
CPC Classifications
C; C03; C03C; C03C8/00; C03C8/02; Y; Y10; Y10S; Y10S376/00; Y10S376/90; Y10S376/904; Y10S376/905
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
93 words
AN IMPROVED METHOD OF PROTECTING A BERYLLIUM CARBIDE-CARBON BODY WHICH COMPRISES COATING SAID BODY WITH A MIXTURE CONSISTING ESSENTIALLY OF, BY RATIO, APPROXIMATELY 0.8 TO APPROXIMATELY 2.4 MOLES OF AT LEAST ONE BASIC OXIDE COMPONENT, THE MAJOR OXIDE OF WHICH IS CAO, APPROXIMATELY 0.1 TO APPROXIMATELY 0.6 MOLE OF AT LEAST ONE AMPHOTERIC OXIDE COMPONENT, THE MAJOR OXIDE OF WHICH IS AL2O3, AND APPROXIMATELY 1.5 TO APPROXIMATELY 3.5 MOLES OF AT LEAST ONE ACIDIC OXIDE COMPONENT, THE MAJOR OXIDE OF WHICH IS SLO2, AND HEATING THE RESULTING COATED BODY AT A VITRIFYING TEMPERATURE.
Claim 2
Dependent Claim
93 words
AN IMPROVED METHOD OF PROTECTING A BERYLLIUM CARBIDE-CARBON BODY WHICH COMPRISES COATING SAID BODY WITH A MIXTURE CONSISTING ESSENTIALLY OF, BY RATIO, APPROXIMATELY 0.8 TO APPROXIMATELY 2.4 MOLES OF AT LEAST ONE BASIC OXIDE COMPONENT, THE MAJOR OXIDE OF WHICH IS CAO, APPROXIMATELY 0.1 TO APPROXIMATELY 0.6 MOLE OF AT LEAST ONE AMPHOTERIC OXIDE COMPONENT, THE MAJOR OXIDE OF WHICH IS AL2O3, AND APPROXIMATELY 1.5 TO APPROXIMATELY 3.5 MOLES OF AT LEAST ONE ACIDIC OXIDE COMPONENT, THE MAJOR OXIDE OF WHICH IS SLO2, AND HEATING THE RESULTING COATED BODY AT A VITRIFYING TEMPERATURE.
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) | 1961-11-03 | 1962-05-05 | 1962-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-11-03 | 1966-05-05 | 1966-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-11-03 | 1970-05-05 | 1970-11-04 | $7700.00 | Window Closed / Lapsed |