Granted Patent
Utility
US 4,719,011 · App. 07/005,641
High pressure liquid chromatography columns
Inventors:
Yehuda Shalon, Danny D. Meyer
Patented Case
View Patent ↗
Granted: Jan 12, 1988
Filed: Jan 21, 1987
Inventors
Yehuda Shalon
Danny D. Meyer
Assignee (at issue)
HT Chemicals, 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.