Granted Patent
Utility
US 5,610,322 · App. 08/527,459
Device for packing chromatography columns
Inventors:
Bernhard Unger, Rainer Dickhardt
Patented Case
View Patent ↗
Granted: Mar 11, 1997
Filed: Sep 13, 1995
Inventors
Bernhard Unger
Rainer Dickhardt
Assignee (at issue)
Hoechst GmbH
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.