US3788910A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extraction and purification of maltotriose and maltotetrose
Assignee: Labatt Breving Co Ltd
•
Filing: 1972-01-17
•
Granted: 1974-01-29
•
Expires: 1992-01-17
Abstract
Abstract MALTOTRIOSE AND MALTOTETROSE ARE EXTRACTED FROM A FERMENTABLE SOURCE MATERIAL, CONVENIENTLY A BREWER''S WORT, AND PURIFIED IN A COMMERCIALLY ADVANTAGEOUS MAN NER BY FERMENTING THE MATERIAL WITH SACCHAROMYCES UVARUM TO REMOVE LOWER MOLECULAR WEIGHT SUGARS, SEPARATING THE YEAST FROM THE REMAINING LIQUID AND SUBJECTING THE LIQUID CONTAINING MALTOTRIOSE AND MALTOTETROSE TO GEL FILTRATION CHROMATOGRAPHY AND COLLECTING SAMPLES CONTAINING MALTOTRIOSE AND/OR MALTOTETROSE. THE COLLECTED FRACTIONS CONTAINING THE DESIRED MALTOTRIOSE AND/OR MALTOTETROSE CAN BE SUBJECTED TO FURTHER PURIFICATION BY MEANS OF CHARCOAL COLUMN CHROMATOGRAPHY.
Inventors
- 👤 G Stewart
- 👤 A Earl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:08
CPC Classifications
C; C13; C13K; C13K13/00; C12; C12P; C12P19/00; Y; Y10; Y10S; Y10S435/00; Y10S435/8215; Y10S435/911; Y10S435/94; Y10S435/942
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1977-01-28 | 1977-07-30 | 1978-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-28 | 1981-07-30 | 1982-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-28 | 1985-07-30 | 1986-01-29 | $7700.00 | Window Closed / Lapsed |