Patent US4895718A successfully refreshed from Google Patents.
US4895718A
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Serotype 2 Marek's disease vaccine
Assignee: United States, AGRICULTURE THE, Secretary of, Department of
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Filing: 1987-07-10
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Granted: 1990-01-23
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Expires: 2007-07-10
Abstract
Abstract A serotype 2 Marek's disease vaccine comprising a cloned strain designated as 301B/1 has been derived from a field isolate. This strain is characterized by superior levels of replicative ability and protectivity in chickens as compared to existing commercial serotype 2 strains, and it is virtually nonpathogenic. 301B/1 is particularly useful in the formulation of highly efficacious bivalent and polyvalent vaccines.
Inventors
- 👤 Richard L. Witter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 11:15
CPC Classifications
A; A61; A61K; A61K39/00; A61K39/12; A61K39/245; A61K39/255; A61K2039/51; A61K2039/525; A61K2039/5254; A61K2039/55; A61K2039/552; C; C12; C12N; C12N2710/00; C12N2710/00011; C12N2710/16011; C12N2710/16311; C12N2710/16334; Y; Y10; Y10S; Y10S424/00; Y10S424/816; Y10S435/00; Y10S435/8215; Y10S435/948
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
35 words
A vaccine comprising: (1) in an effective immunization dosage a viral agent, wherein said viral agent is a cloned virus having the essential identifying characteristics of 301B/1, and (2) a pharmaceutically acceptable carrier or diluent.
Claim 2
Dependent Claim
35 words
A vaccine comprising: (1) in an effective immunization dosage a viral agent, wherein said viral agent is a cloned virus having the essential identifying characteristics of 301B/1, and (2) a pharmaceutically acceptable carrier or diluent.
Claim 3
Dependent Claim
17 words
The vaccine of claim 1 further comprising a second viral agent which is of the HVT type.
Claim 4
Dependent Claim
14 words
The vaccine of claim 1 wherein said virus is live as a cell-associated preparation.
Claim 5
Independent Claim
40 words
A method of protecting a chicken against Marek's disease comprising inoculating said chicken with a vaccine comprising an effective immunization dosage of a viral agent, wherein said viral agent is a cloned virus having the essential identifying characteristics of 301B/1.
Claim 6
Independent Claim
40 words
A method of protecting a chicken against Marek's disease comprising inoculating said chicken with a vaccine comprising an effective immunization dosage of a viral agent, wherein said viral agent is a cloned virus having the essential identifying characteristics of 301B/1.
Claim 7
Dependent Claim
20 words
The method of claim 4 wherein said vaccine further comprises a second viral agent which is of the HVT type.
Claim 8
Dependent Claim
14 words
The method of claim 4 wherein said virus is live as a cell-associated preparation.
References Cited (Backward Citations)
US4160024A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-01-22 | 1993-07-24 | 1994-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-01-22 | 1997-07-24 | 1998-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-01-22 | 2001-07-24 | 2002-01-23 | $7700.00 | Window Closed / Lapsed |