US3799806A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the purification and clarification of sugar juices,involving ultrafiltration
Assignee: Danske Sukkerfabrikker AS
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Filing: 1972-04-20
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Granted: 1974-03-26
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Expires: 1992-04-20
Abstract
Abstract A PROCESS FOR THE PURIFICATION AND CLARIFICATION OF SUGAR JUICE COMPRISING THE STEPS OF MECHANICALLY SEPARATING INSOLUBLE MATERIALS FROM THE JUICE, SUBJECTING THE JUICE TO A FIRST ULTRAFILTRATION, ADDING WATER TO THE CONCENTRATE, SUBJECTING THE DILUTED CONCENTRATE TO A FURTHER ULTRAFILTRATION, COMBINING THE PERMEATES OBTAINED BY SAID ULTRAFILTRATIONS AND SUBJECTING SAID COMBINED PERMEATES TO A FINAL PURIFICATION.
Inventors
- 👤 R Madsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:28
CPC Classifications
C; C13; C13B; C13B20/00; C13B20/16; C13B20/165
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) | 1977-03-25 | 1977-09-24 | 1978-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-25 | 1981-09-24 | 1982-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-25 | 1985-09-24 | 1986-03-26 | $7700.00 | Window Closed / Lapsed |