US2576565A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ceramic product and method of making the same
Assignee: G&WH Corson Inc
•
Filing: 1947-04-04
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Granted: 1951-11-27
•
Expires: 1967-04-04
Abstract
No abstract record available.
Inventors
- 👤 Brown Charles Raymond
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 08:49
CPC Classifications
C; C04; C04B; C04B32/00; Y; Y02; Y02W; Y02W30/00; Y02W30/50; Y02W30/91; Y10; Y10S; Y10S264/00; Y10S264/49
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
122 words
A CERAMIC ARTICLE HAVING A REDSISH COLORATION AND POSSESSING PROPERTIES MAKING IT AVAILABLE FOR USES WHERE CLAY AND SHALE CERAMIC PRODUCTS ARE EMPLOYED COMPRISING, IN THE FORM OF A SHAPED, DENSE, CERAMIC STRUCTURE, REFRACTORY PARTICLES COMPRISING COAL-ASH SLAG PARTICLES BOUND BY INTERFACIAL FUSION TO AND IN A CONTINUOUS MATRIX CONSISTING OF AT LEAST 80% OF THERMALLY MERGED FLY ASH, ANY REMAINDER OF SAID MATRIX BEING MATERIAL FUSIBLE WITH SAID FLY ASH AND FORMING THEREWITH SAID CONTINUOUS MATRIX, AND SAID COAL-ASH SLAG BEING PRESENT IN AN AMOUNT BETWEEN ABOUT 5% AND ABOUT 80% BASED ON THE WEIGHT OF THE COALASH SLAG AND FLY ASH PRESENT IN THE PRODUCT, SUBSTANTIALLY ALL OF THE IRON IN SAID FLY ASH BEING PRESENT IN THE FERRIC STATE.
Claim 2
Dependent Claim
122 words
A CERAMIC ARTICLE HAVING A REDSISH COLORATION AND POSSESSING PROPERTIES MAKING IT AVAILABLE FOR USES WHERE CLAY AND SHALE CERAMIC PRODUCTS ARE EMPLOYED COMPRISING, IN THE FORM OF A SHAPED, DENSE, CERAMIC STRUCTURE, REFRACTORY PARTICLES COMPRISING COAL-ASH SLAG PARTICLES BOUND BY INTERFACIAL FUSION TO AND IN A CONTINUOUS MATRIX CONSISTING OF AT LEAST 80% OF THERMALLY MERGED FLY ASH, ANY REMAINDER OF SAID MATRIX BEING MATERIAL FUSIBLE WITH SAID FLY ASH AND FORMING THEREWITH SAID CONTINUOUS MATRIX, AND SAID COAL-ASH SLAG BEING PRESENT IN AN AMOUNT BETWEEN ABOUT 5% AND ABOUT 80% BASED ON THE WEIGHT OF THE COALASH SLAG AND FLY ASH PRESENT IN THE PRODUCT, SUBSTANTIALLY ALL OF THE IRON IN SAID FLY ASH BEING PRESENT IN THE FERRIC STATE.
References Cited (Backward Citations)
US2055706A
Cited
US2414734A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-11-26 | 1955-05-28 | 1955-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-11-26 | 1959-05-28 | 1959-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-11-26 | 1963-05-28 | 1963-11-27 | $7700.00 | Window Closed / Lapsed |