US2765299A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Recovery of serum albumin
Assignee: Armour and Co
•
Filing: 1952-06-27
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Granted: 1956-10-02
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Expires: 1972-06-27
Abstract
No abstract record available.
Inventors
- 👤 Jules D Porsche
- 👤 James B Lesh
- 👤 Myron D Grossnickle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:47
CPC Classifications
C; C07; C07K; C07K14/00; C07K14/435; C07K14/76; C07K14/765; Y; Y10; Y10S; Y10S530/00; Y10S530/827; Y10S530/829; Y10S530/83
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
117 words
IN A PROCESS FOR THE RECOVERY OF SERUM ALBUMIN FROM AN AQUEOUS SOLUTION OF MAMMALIAN SERUM ALBUMIN AND OTHER PROTEIN CONSTITUENTS OF MAMMALIAN BLOOD, THE STEPS OF SELECTIVELY DENATURING AND COAGULATING SAID OTHER PROTEIN CONSTITUENTS IN SAID SOLUTION AT A PROTEIN SOLIDS CONCENTRATION OF NOT OVER 12% BY HEATING SAID SOLUTION TO A TEMPERATURE BETWEEN ABOUT 45 TO 75* C. WHILE SAID SOLUTION IS AT A PH ON THE ALKALINE SIDE OF THE ISOELECTRIC POINT OF SIAD SERUM ALBUMIN BUT NOT OVER PH 5.7 AND WHILE SAID SOLUTION CONTAINS BETWEEN ABOUT 0.0075 TO 0.02 M CONCENTRACTION OF CAPRYLATE IONS, AND THEN SEPARATING THE COAGULUM OF SAID OTHER PROTEIN CONSTITUENTS FROM THE SUPERNATANT SOLUTION OF SAID SERUM ALBUMIN.
Claim 2
Dependent Claim
117 words
IN A PROCESS FOR THE RECOVERY OF SERUM ALBUMIN FROM AN AQUEOUS SOLUTION OF MAMMALIAN SERUM ALBUMIN AND OTHER PROTEIN CONSTITUENTS OF MAMMALIAN BLOOD, THE STEPS OF SELECTIVELY DENATURING AND COAGULATING SAID OTHER PROTEIN CONSTITUENTS IN SAID SOLUTION AT A PROTEIN SOLIDS CONCENTRATION OF NOT OVER 12% BY HEATING SAID SOLUTION TO A TEMPERATURE BETWEEN ABOUT 45 TO 75* C. WHILE SAID SOLUTION IS AT A PH ON THE ALKALINE SIDE OF THE ISOELECTRIC POINT OF SIAD SERUM ALBUMIN BUT NOT OVER PH 5.7 AND WHILE SAID SOLUTION CONTAINS BETWEEN ABOUT 0.0075 TO 0.02 M CONCENTRACTION OF CAPRYLATE IONS, AND THEN SEPARATING THE COAGULUM OF SAID OTHER PROTEIN CONSTITUENTS FROM THE SUPERNATANT SOLUTION OF SAID SERUM ALBUMIN.
References Cited (Backward Citations)
US2705230A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-10-02 | 1960-04-02 | 1960-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-02 | 1964-04-02 | 1964-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-02 | 1968-04-02 | 1968-10-02 | $7700.00 | Window Closed / Lapsed |