US2991200A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Refractory coating composition and method of coating surfaces therewith
Assignee: Individual
•
Filing: 1957-11-27
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Granted: 1961-07-04
•
Expires: 1977-11-27
Abstract
No abstract record available.
Inventors
- 👤 William R Sheridan
- 👤 John F Young
- 👤 Donald L Kurtis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:26
CPC Classifications
C; C09; C09D; C09D5/00; C09D5/18; C03; C03C; C03C8/00; C23; C23C; C23C24/00; Y; Y02; Y02T; Y02T50/00; Y02T50/60
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
58 words
A METHOD OF COATING SURFACES SUBJECTED TO HIGH TEMPERATURES, COMPRISING COATING SAID SURFACES WITH A MIXTURE CONSISTING ESSENTIALLY OF ZIRCONIUM OXIDE AND RU GRADE SILICATE OF SODA IN SUBSTANTIALLY THE PROPORTION BY WEIGHT OF 58.5% AND 41.5%, RESPECTIVELY, AND DRYING SAID COATING AT PROGRESSIVELY INCREASING TEMPERATURES, RANGING FROM 45*C. TO 125*C. FOR A PERIOD OF APPROXIMATELY THREE HOURS.
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) | 1964-07-03 | 1965-01-02 | 1965-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-03 | 1969-01-02 | 1969-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-03 | 1973-01-02 | 1973-07-04 | $7700.00 | Window Closed / Lapsed |