US3684574A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing sweet syrup by resin isomerization of dextrose syrup
Assignee: Busch Industrial Products Corp
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Filing: 1970-04-20
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Granted: 1972-08-15
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Expires: 1990-04-20
Abstract
Abstract A LINE OF FRUCTOSE-CONTAINING, WATER WHITE, ASH-FREE HIGH DE SYRUPS IS MADE BY RESIN ISOMERIZATION. THE PROCESS INVOLVES ISOMERIZATION IN EQUIPMENT CONSISTING OF CATION-ANION EXCHANGE RESINS ARRANGED IN A LOOP. THE HIGH DEXTROSE (95%) FEED IS FIRST PASSED THROUGH A STRONG BASE ANION RESIN COLUMN AND THEN PASSED THROUGH A STRONG ACID CATION COLUMN, OR THE STRONG ACID CATION CAN BE FIRST. THE OUTPUT FROM THE ACID COLUMN IS RECIRCULATED THROUGH THE STRONG BASE COLUMN IN A LOOP ARRANGEMENT AND THE PROCEDURE IS REPEATED UNTIL THE DESIRED DEGREE OF ISOMERIZATION IS ACHIEVED.
Inventors
- 👤 Edward Katz
- 👤 Irving Ehrenthal
- 👤 Barrett L Scallet
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:29
CPC Classifications
C; C13; C13K; C13K11/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-08-15 | 1976-02-14 | 1976-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-15 | 1980-02-14 | 1980-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-15 | 1984-02-14 | 1984-08-15 | $7700.00 | Window Closed / Lapsed |