Patent US3730770A successfully refreshed from Google Patents.
US3730770A
Expired / Lapsed
US
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Sugar recovery method
Assignee: Industrial Filter and Pump Manufacturing Co
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Filing: 1971-04-07
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Granted: 1973-05-01
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Expires: 1991-04-07
Abstract
Abstract A SUGAR RECOVERY PROCESS AND APPARTUS UTILIZES FRESH ACTIVATED CARBON PARTICLES TO TREAT A SUGAR SOLUTION AFTER IT HAS BEEN DEIONIZED AND PURIFIED IN AN ION EXCLUSION PROCESS AND REUSES THE ACTIVATED CARBON PARTICLES TO TREAT THE SUGAR SOLUTION PRIOR TO ITS DEIONIZATION AND ION EXCLUSION TREATMENT.
Inventors
- 👤 J Zievers
- 👤 C Novotny
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:31
CPC Classifications
C; C13; C13B; C13B35/00; C13B35/02; C13B35/06; C13B20/00; C13B20/12; C13B20/123; C13B20/14; C13B20/148
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) | 1976-04-30 | 1976-10-30 | 1977-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-30 | 1980-10-30 | 1981-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-30 | 1984-10-30 | 1985-05-01 | $7700.00 | Window Closed / Lapsed |