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:
Feb. 27, 1996
Filed:
Sep. 19, 1991
Applicant:
Inventors:
Victor E Marquez, Gaithersburg, MD (US);
John S Driscoll, Rockville, MD (US);
Christopher K-H Tseng, Burtonsville, MD (US);
James A Kelley, Silver Spring, MD (US);
David G Johns, Bethesda, MD (US);
Hiroaki Mitsuya, Rockville, MD (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07H / ;
U.S. Cl.
CPC ...
536 2714 ; 536 276 ; 536 278 ; 536 2781 ;
Abstract
Purine nucleosides active against human immunodeficiency virus which are substituted at the 2'-position by a strong electronegative group such as fluorine are stable in an acid environment and thus can be used for oral administration.