Granted Patent
Utility
US 5,538,954 · App. 08/265,193
Salts of tetracyclines
Inventors:
Torben Koch, Hjarne Dyrsting
Patented Case
View Patent ↗
Granted: Jul 23, 1996
Filed: Jun 24, 1994
Inventors
Torben Koch
Hjarne Dyrsting
Assignee (at issue)
A/S Dumex (Dumex Ltd)
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.