Granted Patent
Utility
US 5,180,293 · App. 07/855,185
Thermoelectrically cooled pumping system
Inventor:
Hans-Georg Hartl
Patented Case
View Patent ↗
Granted: Jan 19, 1993
Filed: Mar 20, 1992
Inventor
Hans-Georg Hartl
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.