Granted Patent
Utility
US 4,808,583 · App. 07/071,459
Solutions of lactic acid salts of piperazinylquinolone- and piperazinyl-azaquinolone-carboxylic acids
Inventors:
Klaus Grohe, Robert Lammens
Patented Case
View Patent ↗
Granted: Feb 28, 1989
Filed: Jul 9, 1987
Inventors
Klaus Grohe
Robert Lammens
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.