US3425909A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of converting starch
Assignee: Standard Brands Inc
•
Filing: 1966-03-09
•
Granted: 1969-02-04
•
Expires: 1986-03-09
Abstract
No abstract record available.
Inventors
- 👤 Edwin L Speakman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:58
CPC Classifications
C; C12; C12P; C12P19/00; C12P19/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
59 words
THE METHOD OF PREPARING AN ENZYME-CONVERTED STRACH WHICH COMPRISES PROVIDING A SLURRY OF WATER, STARCH ALPHA-AMYLASE AND A SMALL AMOUNT OF DOECYL TRIMETHYL AMMONIUM CHLORIDE EFFECTIVE TO INCREASE THE RATE OF CONVERSION OF THE STARCH AND MAINTAINING THE SLURRY AT A TEMPERATURE AT WHICH THE ENZYME CONVERTS THE STARCH UNTIL THE STARCH HAS BEEN THINNED TO THE DESIRED EXTENT.
Claim 2
Independent Claim
59 words
THE METHOD OF PREPARING AN ENZYME-CONVERTED STRACH WHICH COMPRISES PROVIDING A SLURRY OF WATER, STARCH ALPHA-AMYLASE AND A SMALL AMOUNT OF DOECYL TRIMETHYL AMMONIUM CHLORIDE EFFECTIVE TO INCREASE THE RATE OF CONVERSION OF THE STARCH AND MAINTAINING THE SLURRY AT A TEMPERATURE AT WHICH THE ENZYME CONVERTS THE STARCH UNTIL THE STARCH HAS BEEN THINNED TO THE DESIRED EXTENT.
References Cited (Backward Citations)
US3378462A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-02-04 | 1972-08-05 | 1973-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-04 | 1976-08-05 | 1977-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-04 | 1980-08-05 | 1981-02-04 | $7700.00 | Window Closed / Lapsed |