Patent US2834694A successfully refreshed from Google Patents.
US2834694A
Expired / Lapsed
US
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Fructose polymers and method of preparation
Assignee: Individual
•
Filing: 1955-10-07
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Granted: 1958-05-13
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Expires: 1975-10-07
Abstract
No abstract record available.
Inventors
- 👤 Hill Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:25
CPC Classifications
C; C08; C08B; C08B37/00; C08B37/0006; C08B37/0051; C08B37/0054
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
THE METHOD OF PREPARING A POLYMER OF FRUCTOSE FROM INULIN WHICH COMPRISES HEATING SAID INULIN AT A TEMPERATURE OF BETWEEN ABOUT 30*C. AND 130*C. FOR MORE THAN ONE MINUTE IN CONTACT WITH A 0.05% TO 100% BY VOLUME AQUEOUS SOLUTION OF A WEAK ACID TO FORM A POLYMER OF FRUCTOSE HAVING A MOLECULAR WEIGHT BETWEEN ABOUT 340 AND 2500, HAVING THE PROPERTY OF BEING SOLUBLE IN COLD WATER, BEING SUBSTANTIALLY HYDROLYZABLE BY 0.1 N HC1 AT BELOW 40*C. TO FORM FRUCTOSE, AND HAVING AN UNSWEET FLAVOR.
Claim 2
Independent Claim
86 words
THE METHOD OF PREPARING A POLYMER OF FRUCTOSE FROM INULIN WHICH COMPRISES HEATING SAID INULIN AT A TEMPERATURE OF BETWEEN ABOUT 30*C. AND 130*C. FOR MORE THAN ONE MINUTE IN CONTACT WITH A 0.05% TO 100% BY VOLUME AQUEOUS SOLUTION OF A WEAK ACID TO FORM A POLYMER OF FRUCTOSE HAVING A MOLECULAR WEIGHT BETWEEN ABOUT 340 AND 2500, HAVING THE PROPERTY OF BEING SOLUBLE IN COLD WATER, BEING SUBSTANTIALLY HYDROLYZABLE BY 0.1 N HC1 AT BELOW 40*C. TO FORM FRUCTOSE, AND HAVING AN UNSWEET FLAVOR.
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) | 1961-05-12 | 1961-11-11 | 1962-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-12 | 1965-11-11 | 1966-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-12 | 1969-11-11 | 1970-05-13 | $7700.00 | Window Closed / Lapsed |