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:
Jan. 23, 1990
Filed:
Jul. 10, 1987
Applicant:
Inventor:
Richard L Witter, Okemos, MI (US);
Assignee:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61K / ; A61K / ; C12N / ; C12N / ; C12R / ;
U.S. Cl.
CPC ...
424 89 ; 424 93 ; 4351721 ; 435237 ; 435948 ; 935 63 ; 935 65 ; 935 70 ;
Abstract
A Marek's disease vaccine comprising either a revertant virus derived by backpassaging an attenuated serotype 1 Md11 virus or an antigenic component of the virus is characterized by increased levels of replicative ability and protectivity in chickens as compared to the original attenuated strain. Revertants of the invention are exemplified by a clone identified as Md11/75C/R2 and can be formulated into monovalent and polyvalent vaccines.
Witter, Richard. (1990). Revertant serotype 1 marek's disease vaccine (U.S. Patent No. 4895717). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4895717
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile