Granted Patent
Utility
US 5,114,854 · App. 07/312,960
Process of effecting a microinjection into living cells
Inventor:
Günter Bertholdt
Patented Case
View Patent ↗
Granted: May 19, 1992
Filed: Feb 21, 1989
Inventor
Günter Bertholdt
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.