The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 31, 1989
Filed:
Sep. 06, 1985
Applicant:
Inventors:
Meng-Fu Shih, San Diego, CA (US);
Mark D Cochran, La Jolla, CA (US);
Richard D Macdonald, San Diego, CA (US);
Assignee:
PruTech Research and Development Partnership, San Jose, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C12N / ;
U.S. Cl.
CPC ...
435235 ; 4351721 ; 4351723 ; 435236 ; 435238 ; 435948 ; 424 89 ; 935 29 ; 935 56 ; 935 57 ; 935 65 ;
Abstract
Attenuated pseudorabies viruses are provided which comprise DNA including a sequence essential for replication of the attenuated virus, at least a portion of which is present in a sequence essential for replication of a naturally-occurring pseudorabies virus, from which at least a portion of a repeat sequence has been deleted. These viruses are useful as vaccines for immunizing animals against pseudorabies virus disease. The invention also provides methods of preparing attenuated pseudorabies viruses.