US2966443A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Trivalent poliomyelitis live virus vaccine
Assignee: Wyeth Holdings LLC
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Filing: 1959-06-22
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Granted: 1960-12-27
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Expires: 1979-06-22
Abstract
No abstract record available.
Inventors
- 👤 Cox Herald Rea
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:12
CPC Classifications
A; A61; A61K; A61K39/00; A61K39/12; A61K39/125; A61K39/13; A61K2039/51; A61K2039/525; A61K2039/5254; C; C12; C12N; C12N2770/00; C12N2770/00011; C12N2770/32011; C12N2770/32611; C12N2770/32634; Y; Y02; Y02A; Y02A50/00; Y02A50/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
95 words
A TRIVALENT LIVE POLIOMYELITIS VACCINE SUITABLE FOR ORAL ADMINISTRATION COMPRISING A MIXTURE OF TYPE I VIRUS ATTENUATED TO AVIRULENCE TO MAN BY SUCCESSIVE PASSAGES THROUGH THE NERVOUS TISSUE OF RODENTS, TYPE II VIRUS ADAPTED TO CHICK EMBRYO PROPAGATION BY SUCCESSIVE PASSAGES THROUGH THE NERVOUS TISSUE OF SUCKLING RODENTS AND THEN ATTENUATED THROUGH CHICK EMBRYOS UNTIL AVIRULENT TO MAN AND TYPE III VIRUS AVIRULENT TO MAN, THE TRIVALENT VACCINE BEING IN DOSAGE UNIT FORM CONTAINING AT LEAST LOG 6 OF EACH VIRUS, THE TYPE II VIRUS OF THE MIXTURE NOT INHIBITING INFECTION BY THE OTHER TWO.
Claim 2
Dependent Claim
95 words
A TRIVALENT LIVE POLIOMYELITIS VACCINE SUITABLE FOR ORAL ADMINISTRATION COMPRISING A MIXTURE OF TYPE I VIRUS ATTENUATED TO AVIRULENCE TO MAN BY SUCCESSIVE PASSAGES THROUGH THE NERVOUS TISSUE OF RODENTS, TYPE II VIRUS ADAPTED TO CHICK EMBRYO PROPAGATION BY SUCCESSIVE PASSAGES THROUGH THE NERVOUS TISSUE OF SUCKLING RODENTS AND THEN ATTENUATED THROUGH CHICK EMBRYOS UNTIL AVIRULENT TO MAN AND TYPE III VIRUS AVIRULENT TO MAN, THE TRIVALENT VACCINE BEING IN DOSAGE UNIT FORM CONTAINING AT LEAST LOG 6 OF EACH VIRUS, THE TYPE II VIRUS OF THE MIXTURE NOT INHIBITING INFECTION BY THE OTHER TWO.
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) | 1963-12-27 | 1964-06-27 | 1964-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-27 | 1968-06-27 | 1968-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-27 | 1972-06-27 | 1972-12-27 | $7700.00 | Window Closed / Lapsed |