Granted Patent
Utility
US 5,908,552 · App. 08/948,878
Column for capillary chromatographic separations
Inventors:
Monika Dittmann, Gerard Rozing, Hans-Peter Zimmermann
Patented Case
View Patent ↗
Granted: Jun 1, 1999
Filed: Oct 10, 1997
Inventors
Monika Dittmann
Gerard Rozing
Hans-Peter Zimmermann
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.