US2790790A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Protein fractionation
Assignee: JBS USA LLC
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Filing: 1954-11-10
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Granted: 1957-04-30
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Expires: 1974-11-10
Abstract
No abstract record available.
Inventors
- 👤 Klostergaard Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 03:31
CPC Classifications
A; A23; A23J; A23J1/00; Y; Y10; Y10S; Y10S530/00; Y10S530/827; Y10S530/833
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
59 words
A METHOD FOR SUBSTANTIALLY COMPLETE RECOVERY OF RELATIVELY UNCONJUGATED SIMPLE PROTEINS HAVING WIDELY VARYING ISOELECTRIC POINTS FROM A SOLUTION CONTAINING SUCH PROTEINS WHICH COMPRISES: ADJUSTING THE PH OF SAID SOLUTION TO APPROXIMATELY 3.8; AND ADDING SODIUM CHLORIDE IN SUCCESSIVE INCREMENTS TO SAID SOLUTION WHEREBY TO PRECIPITATE OUT VARIOUS PROTEINS FROM SAID MIXTURE AS THE SODIUM CHLORIDE CONCENTRATION IS INCREASED.
Claim 2
Independent Claim
59 words
A METHOD FOR SUBSTANTIALLY COMPLETE RECOVERY OF RELATIVELY UNCONJUGATED SIMPLE PROTEINS HAVING WIDELY VARYING ISOELECTRIC POINTS FROM A SOLUTION CONTAINING SUCH PROTEINS WHICH COMPRISES: ADJUSTING THE PH OF SAID SOLUTION TO APPROXIMATELY 3.8; AND ADDING SODIUM CHLORIDE IN SUCCESSIVE INCREMENTS TO SAID SOLUTION WHEREBY TO PRECIPITATE OUT VARIOUS PROTEINS FROM SAID MIXTURE AS THE SODIUM CHLORIDE CONCENTRATION IS INCREASED.
References Cited (Backward Citations)
GB173831A
Cited
US2006700A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-04-29 | 1960-10-29 | 1961-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-04-29 | 1964-10-29 | 1965-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-04-29 | 1968-10-29 | 1969-04-30 | $7700.00 | Window Closed / Lapsed |