Patent US3021287A successfully refreshed from Google Patents.
US3021287A
Expired / Lapsed
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Sugar refining adsorbent and the production thereof
Assignee: Baugh Chemical Co
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Filing: 1958-05-08
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Granted: 1962-02-13
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Expires: 1978-05-08
Abstract
No abstract record available.
Inventors
- 👤 Elliott P Barrett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 06:04
CPC Classifications
B; B01; B01J; B01J20/00; B01J20/28; B01J20/28014; B01J20/28042; B01J20/22; B01J20/2803
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
A METHOD OF MAKING A SUGAR REFINING ADSORBENT COMPRISING THE STEPS OF FORMING AN INTIMATE PLASTIC MIXTURE CONSISTING ESSENTIALLY OF, BY WEIGHT, ABOUT 40 TO 90 PERCENT OF STEAMED BONE MEAL, ABOUT 10 TO 30 PERCENT OF STARCH, ZERO TO 30 PERCENT OF BONE BLACK FINES, ZERO TO 35 PERCENT OF ACTIVATED CARBON, AND WATER, FORMING SAID MIXTURE INTO SHAPES, DRYING SAID SHAPES, AND FIRING THE DRIED SHAPED IN THE SUBSTANTIAL ABSENCE OF AIR TO CARBONIZE THE STARCH AND HARDEN THEM.
Claim 2
Independent Claim
81 words
A METHOD OF MAKING A SUGAR REFINING ADSORBENT COMPRISING THE STEPS OF FORMING AN INTIMATE PLASTIC MIXTURE CONSISTING ESSENTIALLY OF, BY WEIGHT, ABOUT 40 TO 90 PERCENT OF STEAMED BONE MEAL, ABOUT 10 TO 30 PERCENT OF STARCH, ZERO TO 30 PERCENT OF BONE BLACK FINES, ZERO TO 35 PERCENT OF ACTIVATED CARBON, AND WATER, FORMING SAID MIXTURE INTO SHAPES, DRYING SAID SHAPES, AND FIRING THE DRIED SHAPED IN THE SUBSTANTIAL ABSENCE OF AIR TO CARBONIZE THE STARCH AND HARDEN THEM.
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) | 1965-02-12 | 1965-08-14 | 1966-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-12 | 1969-08-14 | 1970-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-12 | 1973-08-14 | 1974-02-13 | $7700.00 | Window Closed / Lapsed |