Granted Patent
Utility
US 4,977,144 · App. 07/405,926
Imidazo[4,5-b]pyridine derivatives as cardiovascular agents
Inventors:
Roger Fujimoto, John E. Francis, Alan Hutchison
Patented Case
View Patent ↗
Granted: Dec 11, 1990
Filed: Sep 12, 1989
Inventors
Roger Fujimoto
John E. Francis
Alan Hutchison
Assignee (at issue)
Ciba-Geigy
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.