Granted Patent
Utility
US 5,140,033 · App. 07/590,990
Antibacterial 5-alkylquinolonecarboxylic acids
Inventors:
Michael Schriewer, Klaus Grohe, Andreas Krebs, Uwe Petersen, Thomas Schenke, Ingo Haller, Karl G. Metzger, Rainer Endermann, Hans-Joachim Zeiler
Patented Case
View Patent ↗
Granted: Aug 18, 1992
Filed: Oct 1, 1990
Inventors
Michael Schriewer
Klaus Grohe
Andreas Krebs
Uwe Petersen
Thomas Schenke
Ingo Haller
Karl G. Metzger
Rainer Endermann
Hans-Joachim Zeiler
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.