Patent US2946724A successfully refreshed from Google Patents.
US2946724A
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Stable poliomyelitis live virus vaccine
Assignee: Wyeth Holdings LLC
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Filing: 1957-05-29
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Granted: 1960-07-26
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Expires: 1977-05-29
Abstract
No abstract record available.
Inventors
- 👤 Valentine William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:41
CPC Classifications
C; C12; C12N; C12N7/00; A; A61; A61K; A61K39/00; A61K39/12; A61K39/125; A61K39/13; A61K2039/51; A61K2039/525; A61K2039/5254; C12N2770/00; C12N2770/00011; C12N2770/32011; C12N2770/32611; C12N2770/32634; C12N2770/32651; Y; Y02; Y02A; Y02A50/00; Y02A50/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
62 words
AN ORALLY ADMINISTRABLE POLIOMYELITIS VIRUS VACCINE COMPRISING AN AQUEOUS ATTENUATED NON-PATHOGENIC POLIOMYELITIUS VIRUS SUSPENSION ADSORBED BY SUBSTANTIALLY NONHYDRATED GELATIN PARTICLES FROM 10 TO 140 MESH AS WATER OF HYDRATION, THE AMOUNT OF GELATIN BEING SUFFICIENT SO THAT AFTER HYDRATION WITH THE VIRUS SUSPENSION, THE PARTICLES ARE SUBSTANTIALLY DRY, SAID VIRUS VACCINE BEING FREEFLOWING, PARTICULATE, GRANULAR, AND STORAGE-STABLE WITH RESPECT TO ITS ACTIVITY.
Claim 2
Dependent Claim
62 words
AN ORALLY ADMINISTRABLE POLIOMYELITIS VIRUS VACCINE COMPRISING AN AQUEOUS ATTENUATED NON-PATHOGENIC POLIOMYELITIUS VIRUS SUSPENSION ADSORBED BY SUBSTANTIALLY NONHYDRATED GELATIN PARTICLES FROM 10 TO 140 MESH AS WATER OF HYDRATION, THE AMOUNT OF GELATIN BEING SUFFICIENT SO THAT AFTER HYDRATION WITH THE VIRUS SUSPENSION, THE PARTICLES ARE SUBSTANTIALLY DRY, SAID VIRUS VACCINE BEING FREEFLOWING, PARTICULATE, GRANULAR, AND STORAGE-STABLE WITH RESPECT TO ITS ACTIVITY.
References Cited (Backward Citations)
US2166074A
Cited
GB738454A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-07-26 | 1964-01-25 | 1964-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-26 | 1968-01-25 | 1968-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-26 | 1972-01-25 | 1972-07-26 | $7700.00 | Window Closed / Lapsed |