Granted Patent
Utility
US 4,906,432 · App. 07/074,942
Liquid handling
Inventor:
Theodore S. Geiselman
Patented Case
View Patent ↗
Granted: Mar 6, 1990
Filed: Jul 17, 1987
Inventor
Theodore S. Geiselman
Assignee (at issue)
Fisher Scientific Company, L.L.C.
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.