Patent US2526073A successfully refreshed from Google Patents.
US2526073A
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Ceramic method and composition
Assignee: Individual
•
Filing: 1946-03-23
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Granted: 1950-10-17
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Expires: 1966-03-23
Abstract
No abstract record available.
Inventors
- 👤 Walter E Gardner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:05
CPC Classifications
C; C04; C04B; C04B38/00; C04B38/08; Y; Y10; Y10S; Y10S106/00; Y10S106/01; Y10S106/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
56 words
THE METHOD OF PRODUCING A CERAMIC PRODUCT WHICH CONSISTS IN FIRST HEAT-EXPLODING RHYOLITIC ROCK HAVING A COMBINED WATER CONTENT BETWEEN 0.5% AND ABOUT 7%, THEN COMBINING IT WITH ABOUT 7% TO ABOUT 75% BY WEIGHT OF CLAY IN A VOLUME LESS THAN THE VOLUME OF THE ROCK, AND THEREAFTER FIRING THE MASS AT A MATURING TEMPERATURE.
Claim 2
Independent Claim
56 words
THE METHOD OF PRODUCING A CERAMIC PRODUCT WHICH CONSISTS IN FIRST HEAT-EXPLODING RHYOLITIC ROCK HAVING A COMBINED WATER CONTENT BETWEEN 0.5% AND ABOUT 7%, THEN COMBINING IT WITH ABOUT 7% TO ABOUT 75% BY WEIGHT OF CLAY IN A VOLUME LESS THAN THE VOLUME OF THE ROCK, AND THEREAFTER FIRING THE MASS AT A MATURING TEMPERATURE.
References Cited (Backward Citations)
US461980A
Cited
US2388060A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-10-16 | 1954-04-17 | 1954-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-10-16 | 1958-04-17 | 1958-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-10-16 | 1962-04-17 | 1962-10-17 | $7700.00 | Window Closed / Lapsed |