US3573271A
Expired / Lapsed
US
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Process for recovering portein from aqueous yeast liquors
Assignee: EMERY C SWANSON
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Filing: 1970-04-09
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Granted: 1971-03-30
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Expires: 1990-04-09
Abstract
Abstract A PROCESS FOR MOLECULAR SIEVE FRACTIONATION OF PROTEIN FROM BREWERS YEAST OR TORULA YEAST LIQUORS USING A BED OF MODIFIED DEXTRAN GEL GRANULES COMPOSED OF CROSS-LINKED LINEAR MACROMOLECULES IN A THREE DIMENSIONAL NETWORK OF POLYSACCHARIDE CHAINS CONTAINING PORES EXCLUDING PENETRATION BY SAID PROTEIN MOLECULES.
Inventors
- 👤 Milo A Nielsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:35
CPC Classifications
A; A23; A23J; A23J1/00; A23J1/001; A23J1/005; A23J1/18; C; C07; C07K; C07K1/00; C07K1/14; C07K1/16; C07K1/20; Y; Y10; Y10S; Y10S530/00; Y10S530/82; Y10S530/823; Y10S530/824; Y10S530/827; Y10S530/833
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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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) | 1974-03-29 | 1974-09-28 | 1975-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-29 | 1978-09-28 | 1979-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-29 | 1982-09-28 | 1983-03-30 | $7700.00 | Window Closed / Lapsed |