Granted Patent
Utility
US 4,567,271 · App. 06/614,650
Benzoxadiazoles and benzothiadiazoles
Inventor:
Peter Neumann
Patented Case
View Patent ↗
Granted: Jan 28, 1986
Filed: May 29, 1984
Inventor
Peter Neumann
Assignee (at issue)
Sandoz AG
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.