US3185633A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Starch conversion
Assignee: Roehm GmbH Darmstadt
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Filing: 1961-03-02
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Granted: 1965-05-25
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Expires: 1981-03-02
Abstract
No abstract record available.
Inventors
- 👤 Krebs Josef
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 13:59
CPC Classifications
C; C12; C12P; C12P19/00; C12P19/14; C08; C08B; C08B30/00; C08B30/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
A PROCESS FOR THE PREPARATION OF CONVERTED STARCH SYRUP CONTAINING DEXTRIN AND SUGARS, THE SOLIDS CONTENT OF SAID SYRUP BEING AT LEAST 50 PERCENT BY WEIGHT, WHICH PROCESS COMPRISES STIRRING A MIXTURE OF STARCH AND AN AMYLASE INTO WATER HEATED TO A TEMPERATURE ABOVE THE GELATINIZATION TEMPERATURE OF THE STARCH BUT BELOW A TEMPERATURE AT WHICH SUBSTANTIAL AMOUNTS OF THE AMYLASE ARE INACTIVATED, THEN LOWERING THE TEMPERATURE OF THE RESULTING MIXTURE INTO A TEMPERATURE REGION IN WHICH SAID AMYLASE IS OPTIMALLY EFFECTIVE AND MAINTAINING THE MIXTURE IN SAID TEMPERATURE REGION UNTIL THE DESIRED DEGREE OF STARCH CONVERSION IS OBTAINED.
Claim 2
Dependent Claim
99 words
A PROCESS FOR THE PREPARATION OF CONVERTED STARCH SYRUP CONTAINING DEXTRIN AND SUGARS, THE SOLIDS CONTENT OF SAID SYRUP BEING AT LEAST 50 PERCENT BY WEIGHT, WHICH PROCESS COMPRISES STIRRING A MIXTURE OF STARCH AND AN AMYLASE INTO WATER HEATED TO A TEMPERATURE ABOVE THE GELATINIZATION TEMPERATURE OF THE STARCH BUT BELOW A TEMPERATURE AT WHICH SUBSTANTIAL AMOUNTS OF THE AMYLASE ARE INACTIVATED, THEN LOWERING THE TEMPERATURE OF THE RESULTING MIXTURE INTO A TEMPERATURE REGION IN WHICH SAID AMYLASE IS OPTIMALLY EFFECTIVE AND MAINTAINING THE MIXTURE IN SAID TEMPERATURE REGION UNTIL THE DESIRED DEGREE OF STARCH CONVERSION IS OBTAINED.
References Cited (Backward Citations)
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Cited
US2203324A
Cited
GB528258A
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US2258741A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-05-24 | 1968-11-23 | 1969-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-05-24 | 1972-11-23 | 1973-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-05-24 | 1976-11-23 | 1977-05-25 | $7700.00 | Window Closed / Lapsed |