Patent US3250596A successfully refreshed from Google Patents.
US3250596A
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Method for determining the virus adsorptive capacity of aluminum oxide
Assignee: Roche Diagnostics GmbH
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Filing: 1963-04-08
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Granted: 1966-05-10
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Expires: 1983-04-08
Abstract
No abstract record available.
Inventors
- 👤 Grafe Alfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:02
CPC Classifications
A; A61; A61K; A61K39/00; A61K39/39; B; B01; B01J; B01J20/00; B01J20/02; B01J20/06; B01J20/08; A61K2039/555; A61K2039/55505; Y; Y10; Y10S; Y10S435/00; Y10S435/803
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
169 words
A METHOD FOR DETERMINING THE VIRUS ADSORPTION CAPACITY OF ALUMINUM OXIDE, WHICH METHODE COMPRISES THOROUGHLY AGITATING FINELY DIVIDED ALUMINUM OXIDE OF HIGH SURFACE AREA WITH AN ION-FREE AQUEOUS SOLUTION OF AT LEAST ONE MEMBER SELECTED FROM THE GROUP CONSISTING OF ALBUMIN AND CEPHALIN, WHEREIN THE TOTAL AMOUNT OF SAID GROUP MEMBER IN SAID SOLUTION IS DETERMINABLE, SEPARATING THE RESULTING LIQUID PHASE FROM THE SOLID PHASE, AND QUANTITATIVELY ANALYZING SAID LIQUID PHASE FOR DETERMINING THE AMOUNT OF SAID GROUP MEMBER REMAINING DISSOLVED THEREIN, THE DIFFERENCE BETWEEN THE TOTAL AMOUNT OF SAID GROUP MEMBER AND THE REMAINING AMOUNT REPRESENTING THE ADSORPTION CAPACITY OF THE ALUMINUM OXIDE FOR THE GROUP MEMBER, SAID ADSORPTION CAPACITY HAVING AN APPROXIMATELY LINEAR RELATIONSHIP TO THE ADSORPTION CAPACITY OF THE ALUMINUM OXIDE, FOR THE VIRUS, THE VALUES OF THE ADSORPTION CAPACITIES INCREASING TOGETHER, WHEREBY THE AMOUNT OF SAID GROUP MEMBER REMAINING DISSOLVED RELATIVE TO THE TOTAL AMOUNT OF SAID GROUP MEMBER IN SAID AQUEOUS SOLUTION PROVIDES A MEASURE OF THE VIRUS ADSORPTION CAPACITY OF SAID ALUMINUM OXIDE.
Claim 2
Independent Claim
169 words
A METHOD FOR DETERMINING THE VIRUS ADSORPTION CAPACITY OF ALUMINUM OXIDE, WHICH METHODE COMPRISES THOROUGHLY AGITATING FINELY DIVIDED ALUMINUM OXIDE OF HIGH SURFACE AREA WITH AN ION-FREE AQUEOUS SOLUTION OF AT LEAST ONE MEMBER SELECTED FROM THE GROUP CONSISTING OF ALBUMIN AND CEPHALIN, WHEREIN THE TOTAL AMOUNT OF SAID GROUP MEMBER IN SAID SOLUTION IS DETERMINABLE, SEPARATING THE RESULTING LIQUID PHASE FROM THE SOLID PHASE, AND QUANTITATIVELY ANALYZING SAID LIQUID PHASE FOR DETERMINING THE AMOUNT OF SAID GROUP MEMBER REMAINING DISSOLVED THEREIN, THE DIFFERENCE BETWEEN THE TOTAL AMOUNT OF SAID GROUP MEMBER AND THE REMAINING AMOUNT REPRESENTING THE ADSORPTION CAPACITY OF THE ALUMINUM OXIDE FOR THE GROUP MEMBER, SAID ADSORPTION CAPACITY HAVING AN APPROXIMATELY LINEAR RELATIONSHIP TO THE ADSORPTION CAPACITY OF THE ALUMINUM OXIDE, FOR THE VIRUS, THE VALUES OF THE ADSORPTION CAPACITIES INCREASING TOGETHER, WHEREBY THE AMOUNT OF SAID GROUP MEMBER REMAINING DISSOLVED RELATIVE TO THE TOTAL AMOUNT OF SAID GROUP MEMBER IN SAID AQUEOUS SOLUTION PROVIDES A MEASURE OF THE VIRUS ADSORPTION CAPACITY OF SAID ALUMINUM OXIDE.
References Cited (Backward Citations)
US2712986A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-05-09 | 1969-11-08 | 1970-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-09 | 1973-11-08 | 1974-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-09 | 1977-11-08 | 1978-05-10 | $7700.00 | Window Closed / Lapsed |