US3248264A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sugar purification process
Assignee: Carus Chemical Co Inc
•
Filing: 1963-11-26
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Granted: 1966-04-26
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Expires: 1983-11-26
Abstract
No abstract record available.
Inventors
- 👤 Welch William Arthur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:29
CPC Classifications
C; C13; C13B; C13B20/00; C13B20/02; Y; Y10; Y10S; Y10S210/00; Y10S210/902; Y10S210/917
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
AN IMPROVEMENT IN THE PROSPHORIC ACID-LIME PROCESS FOR PURIFYING SUGAR LIQUORS, WHICH IMPROVEMENT COMPRISES ADDING A DILUTE AQUEOUS POTASSIUM PERMANGANATE SOLUTION ALONG WITH PHOSPHORIC ACID AND LIME TO SAID SUGAR LIQUORS, SAID DILUTE AQUEOUS POTASSIUM PERMANGANATE SOLUTION BEING ADDED IN SUCH AMOUNT THAT ABOUT 0.05% TO ABOUT 0.17% POTASSIUM PERMANGANATE, BY WEIGHT OF THE SUGAR, IS ADDED, THE ADDITION OF SAID DILUTE AQUEOUS POTASSIUM PERMANGANATE SOLUTION RESULTING IN THE DEGRADATION OF OXIDIZABLE IMPURITIES IN SAID SUGAR LIQUORS AND THE FORMATION OF INSOLUBLE MANGANESE DIOXIDE, AND THEREBY FORMING A PRECIPITATE FROM SAID LIME AND SAID PHOSPHORIC ACID, IN WHICH PRECIPITATE ARE OCCLUDED SAID MAGANESE DIOXIDE AND IMPURITIES OF SAID SUGAR LIQURS, SAID OCCLUDED MANGANESE DIOXIDE IMPROVING THE COHESIVITY OF SAID PRECIPITATE.
Claim 2
Dependent Claim
120 words
AN IMPROVEMENT IN THE PROSPHORIC ACID-LIME PROCESS FOR PURIFYING SUGAR LIQUORS, WHICH IMPROVEMENT COMPRISES ADDING A DILUTE AQUEOUS POTASSIUM PERMANGANATE SOLUTION ALONG WITH PHOSPHORIC ACID AND LIME TO SAID SUGAR LIQUORS, SAID DILUTE AQUEOUS POTASSIUM PERMANGANATE SOLUTION BEING ADDED IN SUCH AMOUNT THAT ABOUT 0.05% TO ABOUT 0.17% POTASSIUM PERMANGANATE, BY WEIGHT OF THE SUGAR, IS ADDED, THE ADDITION OF SAID DILUTE AQUEOUS POTASSIUM PERMANGANATE SOLUTION RESULTING IN THE DEGRADATION OF OXIDIZABLE IMPURITIES IN SAID SUGAR LIQUORS AND THE FORMATION OF INSOLUBLE MANGANESE DIOXIDE, AND THEREBY FORMING A PRECIPITATE FROM SAID LIME AND SAID PHOSPHORIC ACID, IN WHICH PRECIPITATE ARE OCCLUDED SAID MAGANESE DIOXIDE AND IMPURITIES OF SAID SUGAR LIQURS, SAID OCCLUDED MANGANESE DIOXIDE IMPROVING THE COHESIVITY OF SAID PRECIPITATE.
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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) | 1969-04-25 | 1969-10-25 | 1970-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-25 | 1973-10-25 | 1974-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-25 | 1977-10-25 | 1978-04-26 | $7700.00 | Window Closed / Lapsed |