Granted Patent
Utility
US 4,264,604 · App. 05/918,999
Quinolonecarboxylic acid derivatives as bactericides
Inventor:
Elmar Sturm
Patented Case
View Patent ↗
Granted: Apr 28, 1981
Filed: Jun 26, 1978
Inventor
Elmar Sturm
Assignee (at issue)
Ciba-Geigy
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.