Granted Patent
Utility
US 4,766,314 · App. 06/857,168
Lens arrangement for the focusing of electrically charged particles, and mass spectrometer with such a lens arrangement
Inventor:
Gerhard Jung
Patented Case
View Patent ↗
Granted: Aug 23, 1988
Filed: Apr 29, 1986
Inventor
Gerhard Jung
Assignee (at issue)
Finnigan MAT 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.