US4086134A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for preparation of vaccine against feline leukemia
Assignee: University of Glasgow
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Filing: 1977-02-22
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Granted: 1978-04-25
•
Expires: 1997-02-22
Abstract
Abstract Vaccines affording protection against the diseases resulting from infection of cats with feline leukemia virus are produced from cells infected with that virus or from the virus alone.
Inventors
- 👤 William Fleming Hoggan Jarrett
- 👤 James Oswald Jarrett
- 👤 Lindsay Joan Mackey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:08
CPC Classifications
C; C07; C07K; C07K14/00; C07K14/005; A; A61; A61K; A61K40/00; A61K40/10; A61K40/40; A61K40/46; A61K2239/00; A61K2239/31; A61K2239/38; C12; C12N; C12N2740/00; C12N2740/00011; C12N2740/10011; C12N2740/13011; C12N2740/13022; Y; Y10; Y10S; Y10S424/00; Y10S424/819
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
60 words
A method for manufacturing a vaccine for the prevention of disease caused by feline leukemia virus which comprises culturing at least 10 7 feline lymphoblastoid cells chronically infected with FELV of low infectivity and thereby having viral associated antigen on their surface, inactivating said cells by chemical or physical irradiation or thermal means without destroying immunogenicity, and harvesting the cells.
Claim 2
Independent Claim
60 words
A method for manufacturing a vaccine for the prevention of disease caused by feline leukemia virus which comprises culturing at least 10 7 feline lymphoblastoid cells chronically infected with FELV of low infectivity and thereby having viral associated antigen on their surface, inactivating said cells by chemical or physical irradiation or thermal means without destroying immunogenicity, and harvesting the cells.
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) | 1981-04-24 | 1981-10-24 | 1982-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-04-24 | 1985-10-24 | 1986-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-04-24 | 1989-10-24 | 1990-04-25 | $7700.00 | Window Closed / Lapsed |