US3184320A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ceramic protective coating composition
Assignee: North American Aviation Corp
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Filing: 1964-12-08
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Granted: 1965-05-18
•
Expires: 1984-12-08
Abstract
No abstract record available.
Inventors
- 👤 Harold J Michael
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:23
CPC Classifications
C; C03; C03C; C03C4/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
231 words
A CERAMIC PROTECTIVE COATING COMPOSITION CONSISTING OF: (A) FROM 2% TO 50% BY WEIGHT OF REFRACTORY OXIDE SELECTED FROM THE GROUP CONSISTING OF THE OXIDES OF ALUMINUM, CERIUM, CHROMIUM, COBALT,IRON, MANGANESE, MOLYBDENUM, NICKEL, NIOBIUM, SILICON, TIN,TITANIUM, AND VANADIUM, AND (B) THE BALANCE A MIXTURE OF GLASS FRITS WHICH EACH ARE FLUORINE-FREE AND OF LESS THAN 12% ALKALI METAL OXIDE CONTENT BY WEIGHT, WHICH EACH ARE SEPARATELY FRITTED, AND WHICH CONSISTS ON A WEIGHT BASIS OF: (1) 35 TO 80 PARTS OF A FIRST GLASS FRIT HAVING A SOFTENING TEMPERATURE IN THE RANGE OF 1100*F. TO 1250*F., HAVING A FUSION FLOW VALUE IN THE RANGE OF 7% TO 22%, AND HAVING A THERMAL EXPANSION COEFFICIENT IN THE RANGE 3X10-6 TO 5X10**-6 INCHES PER INCH PER DEGREE FAHRENHEIT, (2) 10 TO 15 PARTS OF A SECOND GLASS FRIT HAVING A SOFTENING TEMPERATURE IN THE RANGE OF 1100*F. TO 1250*F., HAVING A FUSION FLOW VALUE IN THE RANGE OF 38% T 48%, AND HAVING A THERMAL EXPANSION COEFFICIENT IN THE RANGE OF 5X10-6 TO 7X10**-6 INCHES PER INCH PER DEGREE FAHRENHEIT, AND (3) 10 TO 50 PARTS OF A THIRD GLASS FRIT HAVING A SOFTENING TEMPERATURE IN THE RANGE OF 1100*F. TO 1250*F., HAVING A FUSION FLOW VALUE IN THE RANGE OF 60% TO 75%, AND HAVING A THERMAL EXPANSION COEFFICIENT IN THE RANGE OF 7X10**-6 TO 10X10**-6 INCHES PER INCH PER DEGREE FAHRENHEIT
Claim 2
Dependent Claim
231 words
A CERAMIC PROTECTIVE COATING COMPOSITION CONSISTING OF: (A) FROM 2% TO 50% BY WEIGHT OF REFRACTORY OXIDE SELECTED FROM THE GROUP CONSISTING OF THE OXIDES OF ALUMINUM, CERIUM, CHROMIUM, COBALT,IRON, MANGANESE, MOLYBDENUM, NICKEL, NIOBIUM, SILICON, TIN,TITANIUM, AND VANADIUM, AND (B) THE BALANCE A MIXTURE OF GLASS FRITS WHICH EACH ARE FLUORINE-FREE AND OF LESS THAN 12% ALKALI METAL OXIDE CONTENT BY WEIGHT, WHICH EACH ARE SEPARATELY FRITTED, AND WHICH CONSISTS ON A WEIGHT BASIS OF: (1) 35 TO 80 PARTS OF A FIRST GLASS FRIT HAVING A SOFTENING TEMPERATURE IN THE RANGE OF 1100*F. TO 1250*F., HAVING A FUSION FLOW VALUE IN THE RANGE OF 7% TO 22%, AND HAVING A THERMAL EXPANSION COEFFICIENT IN THE RANGE 3X10-6 TO 5X10**-6 INCHES PER INCH PER DEGREE FAHRENHEIT, (2) 10 TO 15 PARTS OF A SECOND GLASS FRIT HAVING A SOFTENING TEMPERATURE IN THE RANGE OF 1100*F. TO 1250*F., HAVING A FUSION FLOW VALUE IN THE RANGE OF 38% T 48%, AND HAVING A THERMAL EXPANSION COEFFICIENT IN THE RANGE OF 5X10-6 TO 7X10**-6 INCHES PER INCH PER DEGREE FAHRENHEIT, AND (3) 10 TO 50 PARTS OF A THIRD GLASS FRIT HAVING A SOFTENING TEMPERATURE IN THE RANGE OF 1100*F. TO 1250*F., HAVING A FUSION FLOW VALUE IN THE RANGE OF 60% TO 75%, AND HAVING A THERMAL EXPANSION COEFFICIENT IN THE RANGE OF 7X10**-6 TO 10X10**-6 INCHES PER INCH PER DEGREE FAHRENHEIT
References Cited (Backward Citations)
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US2843507A
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US2889238A
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US2900276A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-05-17 | 1968-11-16 | 1969-05-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-05-17 | 1972-11-16 | 1973-05-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-05-17 | 1976-11-16 | 1977-05-18 | $7700.00 | Window Closed / Lapsed |