US2881083A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Refractory brick and method of making
Assignee: Illinois Clay Products Co
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Filing: 1956-10-04
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Granted: 1959-04-07
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Expires: 1976-10-04
Abstract
No abstract record available.
Inventors
- 👤 John H Veale
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 09:21
CPC Classifications
C; C04; C04B; C04B33/00; C04B33/02; C04B33/04; C04B33/06; C04B33/30; C04B33/32
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
83 words
THE METHOD OF MAKING BRICK FROM CLAY CONTAINING AN OXIDIZABLE IMPURITY OF THE GROUP CONSISTING OF SULPHUR AND CARBON WHICH COMPRISES MIXING A POWDERED METAL OF THE GROUP CONSISTING OF FERROPHOSPHORUS, FERROLILICON AND ALUMINUM IN THE CLAY IN AN AMOUNT OF APPROXIMATELY 1/2% TO 2 1/2% BY WEIGHT OF THE CLAY COMPOSITION, SHAPING THE COMPOSITION IN THE FORM OF A BRICK AND THEN RAISING THE TEMPERATURE OF THE BRICK TO ITS FIRING TEMPERATURE WITHOUT ALLOWING ANY SUBSTANTIAL WAITING PERIOD OF TIME. FOR OXIDATION.
Claim 2
Independent Claim
83 words
THE METHOD OF MAKING BRICK FROM CLAY CONTAINING AN OXIDIZABLE IMPURITY OF THE GROUP CONSISTING OF SULPHUR AND CARBON WHICH COMPRISES MIXING A POWDERED METAL OF THE GROUP CONSISTING OF FERROPHOSPHORUS, FERROLILICON AND ALUMINUM IN THE CLAY IN AN AMOUNT OF APPROXIMATELY 1/2% TO 2 1/2% BY WEIGHT OF THE CLAY COMPOSITION, SHAPING THE COMPOSITION IN THE FORM OF A BRICK AND THEN RAISING THE TEMPERATURE OF THE BRICK TO ITS FIRING TEMPERATURE WITHOUT ALLOWING ANY SUBSTANTIAL WAITING PERIOD OF TIME. FOR OXIDATION.
References Cited (Backward Citations)
US1585826A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-04-06 | 1962-10-06 | 1963-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-06 | 1966-10-06 | 1967-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-06 | 1970-10-06 | 1971-04-07 | $7700.00 | Window Closed / Lapsed |