US3313655A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for deionizing sugar solutions
Assignee: Rohm and Haas Co
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Filing: 1963-12-27
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Granted: 1967-04-11
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Expires: 1983-12-27
Abstract
No abstract record available.
Inventors
- 👤 Miyahara Akimitsu
- 👤 Oomagari Takaaki
- 👤 Tsuchiya Hikoji
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:05
CPC Classifications
C; C13; C13B; C13B20/00; C13B20/14; C13B20/144
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
THE METHOD OF PURIFYING A DILUTE SUCROSE SOLUTION CONTAINING DISSOLVED SALTS WHICH COMPRISES THE TWO ESSENTIAL STEPS OF DIRECTING THE SOLUTION FIRST THROUGH A BED OF STRONGLY ACIDIC CATON EXCHANGE RESIN IN WHICH THE CROSSLINKING AGENT IS PRESENT IN AMOUNTS RANGING FROM ABOUT 10.5% TO ABOUT 50% OF THE RESIN COPOLYMER, AND SUBSEQUENTLY THROUGH A BED OF STRONGLY ACIDIC CATION EXCHANGE RESIN IN WHICH THE CROSS-LINKING AGENT IS PRESENT IN AMOUNTS RANGING FROM ABOUT 1% TO ABOUT 10%, BOTH RESINS BEING IN THE HYDROGEN FORM.
Claim 2
Independent Claim
85 words
THE METHOD OF PURIFYING A DILUTE SUCROSE SOLUTION CONTAINING DISSOLVED SALTS WHICH COMPRISES THE TWO ESSENTIAL STEPS OF DIRECTING THE SOLUTION FIRST THROUGH A BED OF STRONGLY ACIDIC CATON EXCHANGE RESIN IN WHICH THE CROSSLINKING AGENT IS PRESENT IN AMOUNTS RANGING FROM ABOUT 10.5% TO ABOUT 50% OF THE RESIN COPOLYMER, AND SUBSEQUENTLY THROUGH A BED OF STRONGLY ACIDIC CATION EXCHANGE RESIN IN WHICH THE CROSS-LINKING AGENT IS PRESENT IN AMOUNTS RANGING FROM ABOUT 1% TO ABOUT 10%, BOTH RESINS BEING IN THE HYDROGEN FORM.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-04-10 | 1970-10-10 | 1971-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-04-10 | 1974-10-10 | 1975-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-04-10 | 1978-10-10 | 1979-04-11 | $7700.00 | Window Closed / Lapsed |