Patent US2831818A successfully refreshed from Google Patents.
US2831818A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Granular adsorbent for sugar refining
Assignee: Baugh and Sons Co
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Filing: 1955-02-08
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Granted: 1958-04-22
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Expires: 1975-02-08
Abstract
No abstract record available.
Inventors
- 👤 Elliott P Barrett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:36
CPC Classifications
C; C13; C13B; C13B20/00; C13B20/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
84 words
THAT METHOD OF MAKING A SUGAR REFINING ABSORBENT COMPRISING THE STEPS OF FORMING AN INTIMATE MIXTURE OF BY WEIGHT, ABOUT 60 TO 80 PERCENT OF STEAMED BONE MEAL, ABOUT 15 TO 20 PERCENT OF CLAY, AND FROM ZERO TO 20 PERCENT OF CARBONIZABLE ORGANIC MATERIAL, GAUGING THE MIXTURE WITH WATER TO RENDER IT PLASTIC, EXTRUDING THE PLASTIC MIXTURE TO FORM SHAPES, AND FIRING THE SHAPES IN THE SUBSTANTIAL ABSENCE OF AIR TO HARDEN THEM AT A TEMPERATURE BELOW THAT AT WICH SAID CLAY VITRIFIES.
Claim 2
Dependent Claim
84 words
THAT METHOD OF MAKING A SUGAR REFINING ABSORBENT COMPRISING THE STEPS OF FORMING AN INTIMATE MIXTURE OF BY WEIGHT, ABOUT 60 TO 80 PERCENT OF STEAMED BONE MEAL, ABOUT 15 TO 20 PERCENT OF CLAY, AND FROM ZERO TO 20 PERCENT OF CARBONIZABLE ORGANIC MATERIAL, GAUGING THE MIXTURE WITH WATER TO RENDER IT PLASTIC, EXTRUDING THE PLASTIC MIXTURE TO FORM SHAPES, AND FIRING THE SHAPES IN THE SUBSTANTIAL ABSENCE OF AIR TO HARDEN THEM AT A TEMPERATURE BELOW THAT AT WICH SAID CLAY VITRIFIES.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-04-21 | 1961-10-21 | 1962-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-21 | 1965-10-21 | 1966-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-21 | 1969-10-21 | 1970-04-22 | $7700.00 | Window Closed / Lapsed |