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:
May. 07, 1996
Filed:
Feb. 10, 1993
Applicant:
Inventors:
Paula A Giesa, Lansdale, PA (US);
Philip J Provost, Lansdale, PA (US);
Maurice R Hilleman, Lafayette Hill, PA (US);
Assignee:
Merck & Co., Inc., Rayway, NJ (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
A61K / ; C12N / ; C12N / ;
U.S. Cl.
CPC ...
4242041 ; 4352351 ; 435237 ;
Abstract
Hepatitis A virus is attenuated in virulence by in vitro passage in susceptible cell cultures, without prior passage in a subhuman primate. This process results in a live, attenuated hepatitis A virus vaccine suitable for human disease prevention.