Granted Patent
Utility
US 6,730,216 · App. 09/978,110
Carrier for a chromatographic column
Inventors:
Menno Heringa, Jacobus Duvekot
Patented Case
View Patent ↗
Granted: May 4, 2004
Filed: Oct 15, 2001
Inventors
Menno Heringa
Jacobus Duvekot
Assignee (at issue)
Varian, B.V.
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.