Granted Patent
Utility
US 4,753,925 · App. 06/899,458
Antibacterial 1,7-diamino-1,4-dihydro-4-oxo-3-quinolinecarboxylic acids
Inventors:
Klaus Grohe, Hans-Joachim Zeiler, Karl G. Metzger
Patented Case
View Patent ↗
Granted: Jun 28, 1988
Filed: Aug 22, 1986
Inventors
Klaus Grohe
Hans-Joachim Zeiler
Karl G. Metzger
Assignee (at issue)
Bayer Aktiengesellschaft
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.