US3432345A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of fructose from dextrose
Assignee: Union Starch and Refining Co
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Filing: 1966-04-07
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Granted: 1969-03-11
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Expires: 1986-04-07
Abstract
No abstract record available.
Inventors
- 👤 George T Tsao
- 👤 Thornton H Reid
- 👤 Fred L Hiller
- 👤 Lawrence H Hubbard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:09
CPC Classifications
C; C13; C13K; C13K11/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
105 words
A PROCESS OF ISOMERIZING A PORTION OF THE DEXTROSE IN AN AQUEOUS SOLUTION CONTAINING DEXTROSE AND CONTAINING LESS THAN ABOUT 33% OF FRUCTOSE BASED ON THE TOTAL AMOUNT OF DEXTROSE AND FRUCTOSE COMPRISING ADDING 0.5 ML. TO ABOUT 300 ML. OF CYCLOHEXYLAMINE PER 100 ML. OF DEXTROSE SOLUTION AND INCUBATING THE SOLUTION AT A TEMPERATURE OF 15*C. TO ABOUT 60*C. FOR A PERIOD OF ABOUT 1/2 HOUR TO SEVERAL WEEKS, THE LONGER TIMES BEING EMPLOYED WITH THE LOWER TEMPERATURES AND BEING CORRELATED WITH THE TEMPERATURES TO PRODUCE A SOLUTION CONTAINING MORE THAT THE ORIGI NAL PERCENT OF FRUCTOSE BUT NO MORE THAN 33% OF FRUCTOSE.
Claim 2
Dependent Claim
105 words
A PROCESS OF ISOMERIZING A PORTION OF THE DEXTROSE IN AN AQUEOUS SOLUTION CONTAINING DEXTROSE AND CONTAINING LESS THAN ABOUT 33% OF FRUCTOSE BASED ON THE TOTAL AMOUNT OF DEXTROSE AND FRUCTOSE COMPRISING ADDING 0.5 ML. TO ABOUT 300 ML. OF CYCLOHEXYLAMINE PER 100 ML. OF DEXTROSE SOLUTION AND INCUBATING THE SOLUTION AT A TEMPERATURE OF 15*C. TO ABOUT 60*C. FOR A PERIOD OF ABOUT 1/2 HOUR TO SEVERAL WEEKS, THE LONGER TIMES BEING EMPLOYED WITH THE LOWER TEMPERATURES AND BEING CORRELATED WITH THE TEMPERATURES TO PRODUCE A SOLUTION CONTAINING MORE THAT THE ORIGI NAL PERCENT OF FRUCTOSE BUT NO MORE THAN 33% OF FRUCTOSE.
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) | 1972-03-10 | 1972-09-09 | 1973-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-10 | 1976-09-09 | 1977-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-10 | 1980-09-09 | 1981-03-11 | $7700.00 | Window Closed / Lapsed |