Granted Patent
Utility
US 5,741,903 · App. 08/038,130
Diamine salts for purification of clavulanic acid
Inventor:
P. G. Weber
Patented Case
View Patent ↗
Granted: Apr 21, 1998
Filed: Mar 26, 1993
Inventor
P. G. Weber
Assignee (at issue)
Gist-Brocades N.V.
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.