Granted Patent
Utility
US 5,362,863 · App. 08/128,936
"Process for the preparation of 4""-amino avermectin compounds"
Inventor:
Raymond Cvetovich
Patented Case
View Patent ↗
Granted: Nov 8, 1994
Filed: Sep 29, 1993
Inventor
Raymond Cvetovich
Assignee (at issue)
MERCK & CO., INC.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.