Granted Patent
Utility
US 4,556,658 · App. 06/603,480
7-Amino-1-cyclopropyl-6,8-difluoro-1,4-di hydro-4-oxo-quinoline-3-carboxylic acids and antibacterial agents containing these compounds
Inventors:
Klaus Grohe, Uwe Petersen, Hans-Joachim Zeiler, Karl G. Metzger
Patented Case
View Patent ↗
Granted: Dec 3, 1985
Filed: Apr 24, 1984
Inventors
Klaus Grohe
Uwe Petersen
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.