Granted Patent
Utility
US 5,500,071 · App. 08/326,111
Miniaturized planar columns in novel support media for liquid phase analysis
Inventors:
Patrick Kaltenbach, Laurie S. Mittelstadt, Sally A. Swedberg
Patented Case
View Patent ↗
Granted: Mar 19, 1996
Filed: Oct 19, 1994
Inventors
Patrick Kaltenbach
Laurie S. Mittelstadt
Sally A. Swedberg
Assignee (at issue)
Hewlett-Packard Company, L.P.
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.