US3520972A
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US
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Feline virus vaccines obtained by propagation and serial passage attenuation of virulent feline viruses in diploid feline embryo tissue cell serial passage subculture strains
Assignee: Coopers Animal Health Inc
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Filing: 1967-02-14
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Granted: 1970-07-21
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Expires: 1987-02-14
Abstract
No abstract record available.
Inventors
- 👤 Sidney Edwin Smith
- 👤 Kevin Joseph O'reilly
- 👤 John Prydie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 00:45
CPC Classifications
A; A61; A61K; A61K39/00; A61K39/12; A61K39/15; A61K39/23; A61K39/245; A61K39/265; C; C12; C12N; C12N7/00; A61K2039/51; A61K2039/525; A61K2039/5254; A61K2039/55; A61K2039/552; C12N2710/00; C12N2710/00011; C12N2710/16011; C12N2710/16711; C12N2710/16734; C12N2750/00; C12N2750/00011; C12N2750/14011; C12N2750/14311; C12N2750/14334; C12N2770/00; C12N2770/00011; C12N2770/32011; C12N2770/32034; Y; Y10; Y10S; Y10S424/00; Y10S424/819
Claims Analysis
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-07-20 | 1974-01-19 | 1974-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-07-20 | 1978-01-19 | 1978-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-07-20 | 1982-01-19 | 1982-07-21 | $7700.00 | Window Closed / Lapsed |