US2880099A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Methods of making clay products and improved clay products
Assignee: Victor Chemical Works
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Filing: 1953-10-14
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Granted: 1959-03-31
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Expires: 1973-10-14
Abstract
No abstract record available.
Inventors
- 👤 Ludwig F Audrieth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 05:24
CPC Classifications
C; C04; C04B; C04B33/00; C04B33/02; C04B33/13; C04B33/131
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
67 words
IN THE MANUFACTURE OF SHAPED CLAY PRODUCTS FROM A CLAY MASS, THE METHOD WHICH COMPRISES ADMIXING NONREFACTORY CLAY WITH ABOUT 0.5% TO ABOUT 5% BY WEIGHT BASED ON THE WEIGHT OF CLAY, OF A MEMBER OF THE CLASS CONSISTING OF SODIUM METAPHOSPHATES SODIUM POLYPHOSPHATES PHATES, AND SODIUM POLYPHOSPHATES AND SUFFICIENT WATER TO FORM A CLAY MASS, SHAPING SAID MASS, AND HEATING SAID MASS AT A FRING TEMPERATURE.
Claim 2
Dependent Claim
67 words
IN THE MANUFACTURE OF SHAPED CLAY PRODUCTS FROM A CLAY MASS, THE METHOD WHICH COMPRISES ADMIXING NONREFACTORY CLAY WITH ABOUT 0.5% TO ABOUT 5% BY WEIGHT BASED ON THE WEIGHT OF CLAY, OF A MEMBER OF THE CLASS CONSISTING OF SODIUM METAPHOSPHATES SODIUM POLYPHOSPHATES PHATES, AND SODIUM POLYPHOSPHATES AND SUFFICIENT WATER TO FORM A CLAY MASS, SHAPING SAID MASS, AND HEATING SAID MASS AT A FRING TEMPERATURE.
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) | 1962-03-30 | 1962-09-29 | 1963-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-30 | 1966-09-29 | 1967-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-30 | 1970-09-29 | 1971-03-31 | $7700.00 | Window Closed / Lapsed |