Granted Patent
Utility
US 4,961,351 · App. 07/311,526
Fillable sample taking vessel for handling a liquid sample
Inventor:
Hero Gerken
Patented Case
View Patent ↗
Granted: Oct 9, 1990
Filed: Feb 16, 1989
Inventor
Hero Gerken
Assignee (at issue)
Firma Eppendorf-Netheler-Hinz GmbH
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.