Granted Patent
Utility
US 5,238,557 · App. 07/966,596
Apparatus for controlling the temperature of the mobile phase in a fluid chromatograph
Inventors:
Werner Schneider, Klaus Witt
Patented Case
View Patent ↗
Granted: Aug 24, 1993
Filed: Oct 26, 1992
Inventors
Werner Schneider
Klaus Witt
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.