Patent US4373693A successfully refreshed from Google Patents.
US3061518A
Expired / Lapsed
US
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Method for the filtration of virus fluids
Assignee: Individual
•
Filing: 1959-07-10
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Granted: 1962-10-30
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Expires: 1979-07-10
Abstract
No abstract record available.
Inventors
- 👤 Auerswald Wilhelm
- 👤 Eibl Johann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 06:55
CPC Classifications
B; B01; B01D; B01D67/00; B01D67/0081; B01D67/0088; B01D61/00; B01D61/14; B01D61/145; B01D61/18; B01D63/00; C; C12; C12N; C12N7/00; C12N2770/00; C12N2770/00011; C12N2770/32011; C12N2770/32611; C12N2770/32651
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
166 words
A METHOD FOR ELIMINATING THE ANTIGEN-ADSORPTION ATIVITY OF A PORE FILTER OF THE ACETYL CELLULOSE TYPE HAVING A MEAN PORE DIAMETER OF ABOUT 800 TO 1200 ANGSTROM UNITS AND DESTINED FOR THE FILTRATION OF VIRUS FLUIDS COMPPRISING TREATING THE PORE FILTER WITH A HUMAN PROTEIN SOLUTION SELECTEF FROM THE GROUP CONSISTING A PLASMA PROTEIN FRACTION COMPRISING A PRODUCT DERIVSED FROM HUMAN BLOOD CONSISTING OF NOT LESS THAN 85+2.7 ALBUMIN AND NOT MORE THAN 15-2.7 GLOBULINS OTHER THAN GAMMA GLOBULIN BY MOVING BOUNDARY ELECTROPHORESIS AND A STERILE PREPARA-TION OF THE SERUM ALBUMIN COMPONENT OF HUMAN BLOOD, THE PROTEIN CONTENT OF WHICH CONSISTS OF NOT LESS THAN 96% ALBUMIN, IN A CONCENTRSATION OF 3%TO 4%, SAID SOLUTIONN BEING HEAT TREATED FOR A PERIOD OF NOT LESS THAN 10 HOURS AT A TEMPRATURE OF 60* C ., TO SATURATE THE ADSORPTIVE CAPACITY OF THE INNER PORE SURFACES OF THE FILTER WITH PROTEINS OF HUMAN ORIGIN, AND REMOVING ALL PROTEIN MATERIAL BY WASHING IT WITH A PROTEIN-FREE PHYSIOLOGICAL SALINE SOLUTION.
Claim 2
Independent Claim
166 words
A METHOD FOR ELIMINATING THE ANTIGEN-ADSORPTION ATIVITY OF A PORE FILTER OF THE ACETYL CELLULOSE TYPE HAVING A MEAN PORE DIAMETER OF ABOUT 800 TO 1200 ANGSTROM UNITS AND DESTINED FOR THE FILTRATION OF VIRUS FLUIDS COMPPRISING TREATING THE PORE FILTER WITH A HUMAN PROTEIN SOLUTION SELECTEF FROM THE GROUP CONSISTING A PLASMA PROTEIN FRACTION COMPRISING A PRODUCT DERIVSED FROM HUMAN BLOOD CONSISTING OF NOT LESS THAN 85+2.7 ALBUMIN AND NOT MORE THAN 15-2.7 GLOBULINS OTHER THAN GAMMA GLOBULIN BY MOVING BOUNDARY ELECTROPHORESIS AND A STERILE PREPARA-TION OF THE SERUM ALBUMIN COMPONENT OF HUMAN BLOOD, THE PROTEIN CONTENT OF WHICH CONSISTS OF NOT LESS THAN 96% ALBUMIN, IN A CONCENTRSATION OF 3%TO 4%, SAID SOLUTIONN BEING HEAT TREATED FOR A PERIOD OF NOT LESS THAN 10 HOURS AT A TEMPRATURE OF 60* C ., TO SATURATE THE ADSORPTIVE CAPACITY OF THE INNER PORE SURFACES OF THE FILTER WITH PROTEINS OF HUMAN ORIGIN, AND REMOVING ALL PROTEIN MATERIAL BY WASHING IT WITH A PROTEIN-FREE PHYSIOLOGICAL SALINE SOLUTION.
References Cited (Backward Citations)
DE1012436B
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-10-29 | 1966-04-30 | 1966-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-29 | 1970-04-30 | 1970-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-29 | 1974-04-30 | 1974-10-30 | $7700.00 | Window Closed / Lapsed |