Granted Patent
Utility
US 5,270,211 · App. 07/916,222
Sample tube entry port for a chemical analyzer
Inventors:
Norman Kelln, Kelsey Loughlin, Bruce Weyrauch
Patented Case
View Patent ↗
Granted: Dec 14, 1993
Filed: Jul 16, 1992
Inventors
Norman Kelln
Kelsey Loughlin
Bruce Weyrauch
Assignee (at issue)
Schiapparelli Biosystems, 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.