Granted Patent
Utility
US 5,712,414 · App. 08/677,515
Hydroxycarboxylic acid anilides
Inventors:
Andreas Dierdorf, Theodor Papenfuhs
Patented Case
View Patent ↗
Granted: Jan 27, 1998
Filed: Jul 10, 1996
Inventors
Andreas Dierdorf
Theodor Papenfuhs
Assignee (at issue)
Hoechst GmbH
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.