US3108928A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Treatment and use of enzymes for the hydrolysis of starch
Assignee: Grain Processing Corp
•
Filing: 1962-07-30
•
Granted: 1963-10-29
•
Expires: 1982-07-30
Abstract
No abstract record available.
Inventors
- 👤 Henry R Kathrein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:02
CPC Classifications
C; C12; C12N; C12N9/00; C12N9/14; C12N9/24; C12N9/2402; C12N9/2405; C12N9/2408; C12N9/2411; C12N9/2428; C12P; C12P19/00; C12P19/20; Y; Y10; Y10S; Y10S435/00; Y10S435/814; Y10S435/8215; Y10S435/911; Y10S435/913; Y10S435/917
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
83 words
IN A PROCESS FOR PRODUCING DEXTROSE FROM STARCHY MATERIALS WHEREIN THE STARCHY MATERIAL IS HYDROLYZED WITH FUNGAL ENZYMES, THE IMPROVEMENT WHICH CONSISTS IN HYDROLYZING THE STARCHY MATERIAL WITH A GLUCAMYLASE-CONTAINING FUNGAL ENZYME PREPARATION WHICH HAS BEEN PURIFIED BY ADJUSTING THE PH OF SAID PREPARATION IN AQUEOUS MEDIUM TO FROM ABOUT 9.0 TO ABOUT 11.0 AND MAINTAINING SAID PREPARATION AT A TEMPERATURE IN THE RANGE FROM ABOUT 22 TO 55*C. FOR A TIME IN EXCESS OF ABOUT 15 MINUTES TO SUBSTANTIALLY INACTIVATE TRANSGLUCOSIDASE ENZYME.
Claim 2
Dependent Claim
83 words
IN A PROCESS FOR PRODUCING DEXTROSE FROM STARCHY MATERIALS WHEREIN THE STARCHY MATERIAL IS HYDROLYZED WITH FUNGAL ENZYMES, THE IMPROVEMENT WHICH CONSISTS IN HYDROLYZING THE STARCHY MATERIAL WITH A GLUCAMYLASE-CONTAINING FUNGAL ENZYME PREPARATION WHICH HAS BEEN PURIFIED BY ADJUSTING THE PH OF SAID PREPARATION IN AQUEOUS MEDIUM TO FROM ABOUT 9.0 TO ABOUT 11.0 AND MAINTAINING SAID PREPARATION AT A TEMPERATURE IN THE RANGE FROM ABOUT 22 TO 55*C. FOR A TIME IN EXCESS OF ABOUT 15 MINUTES TO SUBSTANTIALLY INACTIVATE TRANSGLUCOSIDASE ENZYME.
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) | 1966-10-28 | 1967-04-29 | 1967-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-10-28 | 1971-04-29 | 1971-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-10-28 | 1975-04-29 | 1975-10-29 | $7700.00 | Window Closed / Lapsed |