Granted Patent
Utility
US 5,482,628 · App. 08/277,853
Column for liquid chromatography
Inventor:
Hans Schick
Patented Case
View Patent ↗
Granted: Jan 9, 1996
Filed: Apr 15, 1994
Inventor
Hans Schick
Assignee (at issue)
Upchurch Scientific, Inc.
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.