US3145144A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for manufacturing chromium treated vaccines
Assignee: Takeda Pharmaceutical Co Ltd
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Filing: 1960-09-28
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Granted: 1964-08-18
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Expires: 1980-09-28
Abstract
No abstract record available.
Inventors
- 👤 Ando Koji
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:44
CPC Classifications
A; A61; A61K; A61K39/00; A61K39/02; A61K2039/51; A61K2039/52; A61K2039/521
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
112 words
A METHOD FOR THE PREPARATION OF STABILIZED BACTERIAL VACCINE WHICH COMPRISES SUBJECTING A SALINE SUSPENSION OF BACTERIA CONTAINING IMMUNIZING SURFACE ANTIGEN TO THE ACTION OF A DISINFECTANT SELECTED FROM THE GROUP CONSISTING OF FORMALIN AND SODIUM ETHYLMERCURITHIOSALICYLATE, ADMIXING THE DISINFECTED SUSPENSION WITH AQUEOUS SOLUTION CONTAINING 0.05 TO 0.2% OF A MEMBER SELECTED FROM THE GROUP CONSISTING OF CHROME ALUM, CHROMIUM SULFATE, CHROMIC CHLORIDE AND CHROMIC NITRATE, MAINTAINING THE RESULTING ADMIXTURE AT A PH BETWEEN 4 AND 6 AND AT A TEMPERATURE OF ABOUT 37*C. FOR ABOUT 5 DAYS, WHEREBY THE IMMUNIZING SURFACE ANTIGEN IS COMBINED WITH CHROMIUM, THEREAFTER CENTRIFUGING THE RESULTING PRODUCT AND RESUSPENDING THE SO-COLLECTED BACTERIA IN DISINFECTANT-CONTAINING PHYSIOLOGICAL SALT SOLUTION.
Claim 2
Independent Claim
112 words
A METHOD FOR THE PREPARATION OF STABILIZED BACTERIAL VACCINE WHICH COMPRISES SUBJECTING A SALINE SUSPENSION OF BACTERIA CONTAINING IMMUNIZING SURFACE ANTIGEN TO THE ACTION OF A DISINFECTANT SELECTED FROM THE GROUP CONSISTING OF FORMALIN AND SODIUM ETHYLMERCURITHIOSALICYLATE, ADMIXING THE DISINFECTED SUSPENSION WITH AQUEOUS SOLUTION CONTAINING 0.05 TO 0.2% OF A MEMBER SELECTED FROM THE GROUP CONSISTING OF CHROME ALUM, CHROMIUM SULFATE, CHROMIC CHLORIDE AND CHROMIC NITRATE, MAINTAINING THE RESULTING ADMIXTURE AT A PH BETWEEN 4 AND 6 AND AT A TEMPERATURE OF ABOUT 37*C. FOR ABOUT 5 DAYS, WHEREBY THE IMMUNIZING SURFACE ANTIGEN IS COMBINED WITH CHROMIUM, THEREAFTER CENTRIFUGING THE RESULTING PRODUCT AND RESUSPENDING THE SO-COLLECTED BACTERIA IN DISINFECTANT-CONTAINING PHYSIOLOGICAL SALT SOLUTION.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-08-18 | 1968-02-17 | 1968-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-18 | 1972-02-17 | 1972-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-18 | 1976-02-17 | 1976-08-18 | $7700.00 | Window Closed / Lapsed |