US3030218A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making refractory clay products
Assignee: Zonolite Co
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Filing: 1959-01-30
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Granted: 1962-04-17
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Expires: 1979-01-30
Abstract
No abstract record available.
Inventors
- 👤 Gilbert C Robinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:56
CPC Classifications
C; C04; C04B; C04B33/00; C04B33/02; C04B33/13; C04B28/00; C04B28/001; Y; Y10; Y10S; Y10S106/00; Y10S106/01; Y10S106/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
112 words
A METHOD OF MAKING A REFRACTORY AND STRUCTURAL CLAY PRODUCT, WHICH COMPRISES FIRST WETTING A LIGHT-WEIGHT VERMICULITE AGGREGATE WITH A SUBSTANTIAL PROPORTION IN THE RANGE OF 0.5 TO 2 POUNDS OF AGGREGATE OF THE TOTAL AMOUNT OF WATER OF PLASTICITY TO BE USED, MIXING IN CLAY PARTICLES, ADDING THE BALANCE OF WATER IF ANY TO MAKE UP SAID TOTAL AMOUNT, AND SUBJECTING THE RESULTING MIXTURE TO PRESSURE TO SHAPE THE SAME, THE PROPORTIONS OF AGGREGATE AND CLAY PARTICLES BY WEIGHT BEING ABOUT 5 TO 80% OF LIGHT-WEIGHT AGGREGATE, 95 TO 20% OF CLAY PARTICCLES AND 15 TO 75% TOTAL WATER OF PLASTICITY BASED ON TH ETOTAL WEIGHT OF AGGREGATE PLUS CLAY PARTICLES.
Claim 2
Independent Claim
112 words
A METHOD OF MAKING A REFRACTORY AND STRUCTURAL CLAY PRODUCT, WHICH COMPRISES FIRST WETTING A LIGHT-WEIGHT VERMICULITE AGGREGATE WITH A SUBSTANTIAL PROPORTION IN THE RANGE OF 0.5 TO 2 POUNDS OF AGGREGATE OF THE TOTAL AMOUNT OF WATER OF PLASTICITY TO BE USED, MIXING IN CLAY PARTICLES, ADDING THE BALANCE OF WATER IF ANY TO MAKE UP SAID TOTAL AMOUNT, AND SUBJECTING THE RESULTING MIXTURE TO PRESSURE TO SHAPE THE SAME, THE PROPORTIONS OF AGGREGATE AND CLAY PARTICLES BY WEIGHT BEING ABOUT 5 TO 80% OF LIGHT-WEIGHT AGGREGATE, 95 TO 20% OF CLAY PARTICCLES AND 15 TO 75% TOTAL WATER OF PLASTICITY BASED ON TH ETOTAL WEIGHT OF AGGREGATE PLUS CLAY PARTICLES.
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) | 1965-04-16 | 1965-10-16 | 1966-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-16 | 1969-10-16 | 1970-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-16 | 1973-10-16 | 1974-04-17 | $7700.00 | Window Closed / Lapsed |