US2958628A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat treatable plasma protein product and method of preparation
Assignee: Bayer Corp
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Filing: 1957-02-21
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Granted: 1960-11-01
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Expires: 1977-02-21
Abstract
No abstract record available.
Inventors
- 👤 Jr John H Hink
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:32
CPC Classifications
A; A61; A61K; A61K35/00; A61K35/12; A61K35/14; A61K35/16; Y; Y10; Y10S; Y10S530/00; Y10S530/827; Y10S530/829; Y10S530/83; Y10S530/831
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
80 words
IN THE PROCESS OF FRACTIONATING HUMAN PLASMA PROTEINS BY FRACTIONAL PRECIPITATING WITH COLD ETHANOL, AFTER THE REMOVAL OF ALL COAGULATION COMPONENTS AND ALL GAMMA GLOBULIN, THE STEP OF PRECIPITATING A MIXTURE OF ALBUMIN, ALPHA GLOBULIN AND BETA GLOBULIN AT AN ETHANOL CONCENTRATION OF 25 TO 38%, A PH OF 4.3 TO 4.7, A TEMPERATURE OF BETWEEN -2*C. AND THE FREEZING POINT OF THE SOLUTION, AN IONIC STRENGTH OF LESS THAN 0.12, AND A PROTEIN CONCENTRATION OF GREATER THAN 2.2 PERCENT.
Claim 2
Dependent Claim
80 words
IN THE PROCESS OF FRACTIONATING HUMAN PLASMA PROTEINS BY FRACTIONAL PRECIPITATING WITH COLD ETHANOL, AFTER THE REMOVAL OF ALL COAGULATION COMPONENTS AND ALL GAMMA GLOBULIN, THE STEP OF PRECIPITATING A MIXTURE OF ALBUMIN, ALPHA GLOBULIN AND BETA GLOBULIN AT AN ETHANOL CONCENTRATION OF 25 TO 38%, A PH OF 4.3 TO 4.7, A TEMPERATURE OF BETWEEN -2*C. AND THE FREEZING POINT OF THE SOLUTION, AN IONIC STRENGTH OF LESS THAN 0.12, AND A PROTEIN CONCENTRATION OF GREATER THAN 2.2 PERCENT.
Claim 3
Dependent Claim
74 words
AS A NEW PRODUCT, AN AQUEOUS SOLUTION OF A LOW MOLECULAR WEIGHT, OSMOTICALLY ACTIVE, ELECTROPHORETICALLY INHOMOGENEOUS HUMAN BLOOD PROTEIN COMPRISING, BY ELECTROPHORETIC ANALYSIS, A MIXTURE OF ALBUMIN, ALPHA GLOBULIN AND BETA GLOBULIN, AND EXHIBITING HOMOGENICITY IN THE ULTRACENTRIFUGE WITH A SEDIMENTATION CONSTANT WITHIN THE RANGE OF 3.9 TO 4.2 SVEDBERG UNITS AND WHEREIN THE AMOUNTS OF SAID ALBUMIN, ALPHA GLOBULIN AND BETA GLOBULIN ARE RESPECTIVELY IN THE RANGE OF 85.92%, AND 4-10% AND 2.7%.
Claim 4
Dependent Claim
74 words
AS A NEW PRODUCT, AN AQUEOUS SOLUTION OF A LOW MOLECULAR WEIGHT, OSMOTICALLY ACTIVE, ELECTROPHORETICALLY INHOMOGENEOUS HUMAN BLOOD PROTEIN COMPRISING, BY ELECTROPHORETIC ANALYSIS, A MIXTURE OF ALBUMIN, ALPHA GLOBULIN AND BETA GLOBULIN, AND EXHIBITING HOMOGENICITY IN THE ULTRACENTRIFUGE WITH A SEDIMENTATION CONSTANT WITHIN THE RANGE OF 3.9 TO 4.2 SVEDBERG UNITS AND WHEREIN THE AMOUNTS OF SAID ALBUMIN, ALPHA GLOBULIN AND BETA GLOBULIN ARE RESPECTIVELY IN THE RANGE OF 85.92%, AND 4-10% AND 2.7%.
References Cited (Backward Citations)
US2659986A
Cited
US2761808A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-01 | 1964-05-02 | 1964-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-01 | 1968-05-02 | 1968-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-01 | 1972-05-02 | 1972-11-01 | $7700.00 | Window Closed / Lapsed |