Granted Patent
Utility
US 5,731,872 · App. 08/549,851
Plasma manipulator
Inventor:
Heinz Falk
Patented Case
View Patent ↗
Granted: Mar 24, 1998
Filed: Feb 22, 1996
Inventor
Heinz Falk
Assignee (at issue)
SPECTRO ANALYTICAL INSTRUMENTS 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.