US4302444A
Expired / Lapsed
US
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Vaccines for immunizing egg-laying birds against Egg Drop disease, preparation of said vaccines, and method of use of said vaccines
Assignee: Akzo NV
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Filing: 1979-08-27
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Granted: 1981-11-24
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Expires: 1999-08-27
Abstract
Abstract There are disclosed novel vaccines for immunizing egg-laying birds against Egg Drop disease, a group of novel viruses (generically called EDS 76 virus) used in the preparation of such vaccines, and methods for immunizing egg-laying birds against Egg Drop disease or syndrome.
Inventors
- 👤 William Baxendale
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 00:45
CPC Classifications
A; A61; A61K; A61K39/00; A61K39/12; A61K39/235; A61L; A61L2/00; A61L2/16; A61L2/18; A61K2039/51; A61K2039/525; A61K2039/5252; A61K2039/5254; A61K2039/555; A61K2039/55511; A61K2039/55566; A61L2103/00; A61L2103/05; C; C12; C12N; C12N2710/00; C12N2710/00011; C12N2710/10011; C12N2710/10211; C12N2710/10234; Y; Y10; Y10S; Y10S424/00; Y10S424/816
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
60 words
A process for the preparation of a live, unattenuated vaccine that protects egg-laying birds against the Egg Drop disease comprising growing an EDS 76 virus selected from the group consisting of virus EDS 76 (VLO 10110/AV1) on cell tissue culture and harvesting the infected culture material selected from the group consisting of tissue culture fluids, the cells, and mixtures thereof.
Claim 2
Dependent Claim
60 words
A process for the preparation of a live, unattenuated vaccine that protects egg-laying birds against the Egg Drop disease comprising growing an EDS 76 virus selected from the group consisting of virus EDS 76 (VLO 10110/AV1) on cell tissue culture and harvesting the infected culture material selected from the group consisting of tissue culture fluids, the cells, and mixtures thereof.
Claim 3
Dependent Claim
50 words
A process for the preparation of a live, unattenuated vaccine that protects egg-laying birds against the Egg Drop disease comprising growing an EDS 76 virus selected from the group consisting of virus EDS 76 (VLO 10110/AV1) in embryonated eggs and harvesting any of the embryos, the membranes, and allantoic fluids.
Claim 4
Dependent Claim
50 words
A process for the preparation of a live, unattenuated vaccine that protects egg-laying birds against the Egg Drop disease comprising growing an EDS 76 virus selected from the group consisting of virus EDS 76 (VLO 10110/AV1) in embryonated eggs and harvesting any of the embryos, the membranes, and allantoic fluids.
Claim 5
Dependent Claim
58 words
A process for the preparation of a live, attenuated vaccine that protects egg-laying birds against the Egg Drop disease comprising adapting an EDS 76 virus selected from the group consisting of virus EDS 76 (VLO 10110/AV1) to an avian tissue cell-containing culture and undertaking a plurality of passages of said virus in said culture to multiply said virus.
Claim 6
Dependent Claim
58 words
A process for the preparation of a live, attenuated vaccine that protects egg-laying birds against the Egg Drop disease comprising adapting an EDS 76 virus selected from the group consisting of virus EDS 76 (VLO 10110/AV1) to an avian tissue cell-containing culture and undertaking a plurality of passages of said virus in said culture to multiply said virus.
Claim 7
Dependent Claim
61 words
A process for the preparation of an inactivated vaccine that protects egg-laying birds against the Egg Drop disease comprising inactivating an EDS 76 virus selected from the group consisting of virus EDS 76 (VLO 10110/AV1) with an inactivating agent selected from the group consisting of an enzyme, an organic solvent, formaldehyde, β-propiolactone, and mixtures of an enzyme and an organic solvent.
Claim 8
Dependent Claim
61 words
A process for the preparation of an inactivated vaccine that protects egg-laying birds against the Egg Drop disease comprising inactivating an EDS 76 virus selected from the group consisting of virus EDS 76 (VLO 10110/AV1) with an inactivating agent selected from the group consisting of an enzyme, an organic solvent, formaldehyde, β-propiolactone, and mixtures of an enzyme and an organic solvent.
Claim 9
Dependent Claim
13 words
The process of claim 4 wherein said organic solvent is an halogenated hydrocarbon.
Claim 10
Dependent Claim
11 words
The process of claim 4 wherein said inactivating agent is formaldehyde.
Claim 11
Dependent Claim
11 words
The process of claim 4 wherein said inactivating agent is β-propiolactone.
Claim 12
Dependent Claim
27 words
A vaccine effective against Egg Drop disease comprising an EDS 76 virus selected from the group consisting of virus EDS 76 (VLO 10110/AV1) in an unattenuated form.
Claim 13
Dependent Claim
27 words
A vaccine effective against Egg Drop disease comprising an EDS 76 virus selected from the group consisting of virus EDS 76 (VLO 10110/AV1) in an unattenuated form.
Claim 14
Dependent Claim
27 words
A vaccine effective against Egg Drop disease comprising an EDS 76 virus selected from the group consisting of virus EDS 76 (VLO 10110/AV1) in an attenuated form.
Claim 15
Dependent Claim
27 words
A vaccine effective against Egg Drop disease comprising an EDS 76 virus selected from the group consisting of virus EDS 76 (VLO 10110/AV1) in an attenuated form.
Claim 16
Dependent Claim
27 words
A vaccine effective against Egg Drop disease comprising an EDS 76 virus selected from the group consisting of virus EDS 76 (VLO 10110/AV1) in an inactivated form.
Claim 17
Dependent Claim
27 words
A vaccine effective against Egg Drop disease comprising an EDS 76 virus selected from the group consisting of virus EDS 76 (VLO 10110/AV1) in an inactivated form.
Claim 18
Independent Claim
22 words
A method of immunizing egg-laying birds against Egg Drop disease comprising administering to egg-laying birds the vaccine of claims 8 to 10.
Claim 19
Dependent Claim
23 words
The method of claim 11 comprising administering a live vaccine in a dosage ranging from 10 3 to 10 8 pfu per bird.
Claim 20
Dependent Claim
22 words
The method of claim 11 comprising administering an inactivated vaccine in a dosage of at least 10 2 HA units per bird.
References Cited (Backward Citations)
FR2382500B1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-11-23 | 1985-05-25 | 1985-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-11-23 | 1989-05-25 | 1989-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-11-23 | 1993-05-25 | 1993-11-24 | $7700.00 | Window Closed / Lapsed |