Patent US2897411A successfully refreshed from Google Patents.
US3128231A
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Suppression of adventitious tissue culture contaminants with selected soluble salts of trivalent metal cations
Assignee: Baylor Medical Foundation
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Filing: 1962-04-11
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Granted: 1964-04-07
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Expires: 1982-04-11
Abstract
No abstract record available.
Inventors
- 👤 Joseph L Melnick
- 👤 Wallis Craig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 18:46
CPC Classifications
C; C12; C12N; C12N7/00; C12N2770/00; C12N2770/00011; C12N2770/32011
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
75 words
THE PROCESS WHICH COMPRISES ADDING AQUEOUS SOLUTIONS CONTAINING AT LEAST ONE MEMBER OF THE GROUP CONSISTING OF ALUMINUM CHLORIDE, ALUMINUM SULFATE, CHROMIC CHLORIDE, CHROMIC SULFATE, FERRIC CHLORIDE AND FERRIC SULFATE TO A TISSUE CULTURE MEDIUM FOR CEL L CULTURES SUITABLE FOR THE PRODUCTION AND FOR THE SAFETY TESTING OF VIRAL VACCINES CONTAINING AT LEAST ONE LIVE RIBONUCLEIC ACID-CONTAINING TISSUE-CULTURE PROPAGATED ENTEROVIRUS, ATTENUATED TO AVIRULENCE TO MAN, IN CONCENTRATION EFFECTIVE TO SUPPRESS ADVENTITIOUS TISSUE CULTURE CONTAMINANTS.
Claim 2
Dependent Claim
75 words
THE PROCESS WHICH COMPRISES ADDING AQUEOUS SOLUTIONS CONTAINING AT LEAST ONE MEMBER OF THE GROUP CONSISTING OF ALUMINUM CHLORIDE, ALUMINUM SULFATE, CHROMIC CHLORIDE, CHROMIC SULFATE, FERRIC CHLORIDE AND FERRIC SULFATE TO A TISSUE CULTURE MEDIUM FOR CEL L CULTURES SUITABLE FOR THE PRODUCTION AND FOR THE SAFETY TESTING OF VIRAL VACCINES CONTAINING AT LEAST ONE LIVE RIBONUCLEIC ACID-CONTAINING TISSUE-CULTURE PROPAGATED ENTEROVIRUS, ATTENUATED TO AVIRULENCE TO MAN, IN CONCENTRATION EFFECTIVE TO SUPPRESS ADVENTITIOUS TISSUE CULTURE CONTAMINANTS.
References Cited (Backward Citations)
US3096249A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-04-07 | 1967-10-07 | 1968-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-07 | 1971-10-07 | 1972-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-07 | 1975-10-07 | 1976-04-07 | $7700.00 | Window Closed / Lapsed |