US2744840A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sugar purification ion exchange method and apparatus
Assignee: Holly Sugar Corp
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Filing: 1950-06-16
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Granted: 1956-05-08
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Expires: 1970-06-16
Abstract
No abstract record available.
Inventors
- 👤 Daniels Robert Martin
- 👤 Joseph E Maudru
- 👤 Guy O Rorabaugh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:57
CPC Classifications
C; C13; C13B; C13B20/00; C13B20/14; C13B20/142
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
115 words
IN APPARATUS FOR PURIFYING SUGAR JUICES AND THE LIKE, MEANS FOR CONTAINING A MIXED BED OF ANION AND CATION RESIN; MEANS FOR PASSING SAID JUICE THROUGH SAID BED; MEANS FOR SUBSTANTIALLY CONTINUOUSLY INTRODUCING FRESH RESINS TO SAID BED AT A PREDETERMINED POINT THEREOF; MEANS FOR SUBSTANTIALLY CONTINUOUSLY REMOVING EXHAUSTED RESINS FROM SAID BED AT A SPACED POINT; AND A WET GRAVITY SHAKING TABLE FOR HYDRAULICALLY SEPARATING THE ANION RESINS FROM THE CATION RESINS, SAID TABLE HAVING A TILTED BED PROVIDED WITH LONGITUDINALLY EXTENDING RIFFLES AT LEAST 1/4 INCH DEEP, AT LEAST HALF OF SAID RIFFLES EXTENDING TO THE END OF SAID TABLE, AND MEANS FOR PRODUCING A CROSS FLOW OF WASH WATER OVER SAID RIFFLES.
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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) | 1959-05-08 | 1959-11-07 | 1960-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-08 | 1963-11-07 | 1964-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-08 | 1967-11-07 | 1968-05-08 | $7700.00 | Window Closed / Lapsed |