Granted Patent
Utility
US 4,670,444 · App. 06/614,923
7-amino-1-cyclopropyl-4-oxo-1, 4-dihydro-quinoline-and naphthyridine-3-carboxylic acids and antibacterial agents containing these compounds
Inventors:
Klaus Grohe, Hans-Joachim Zeiler, Karl G. Metzger
Patented Case
View Patent ↗
Granted: Jun 2, 1987
Filed: May 29, 1984
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.