Granted Patent
Utility
US 5,554,636 · App. 08/426,234
N-acylated 4-hydroxphenylamine derivatives with analgesic properties and pharmaceutical compositions containing them
Inventors:
Nicolas G. Bazan, Julio Alvarez-Builla Gomez
Patented Case
View Patent ↗
Granted: Sep 10, 1996
Filed: Apr 21, 1995
Inventors
Nicolas G. Bazan
Julio Alvarez-Builla Gomez
Assignee (at issue)
LSU Medical Center
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.