US3711329A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sugar recovery method and apparatus
Assignee: Industrial Filter and Pump Manufacturing Co
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Filing: 1971-02-22
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Granted: 1973-01-16
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Expires: 1991-02-22
Abstract
Abstract A METHOD AND APPARATUS FOR PURIFYING A SUGAR BEARING SOLUTION SUCH AS MOLASSES TREATES THE IMPURE SOLUTION WITH BAUXITE PRIOR TO THE PASSAGE THREOF TO AN ION EXCLUSION RESIN. D R A W I N G
Inventors
- 👤 J Zievers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 01:33
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) | 1976-01-16 | 1976-07-17 | 1977-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-16 | 1980-07-17 | 1981-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-16 | 1984-07-17 | 1985-01-16 | $7700.00 | Window Closed / Lapsed |