Granted Patent
Utility
US 5,118,941 · App. 07/690,870
Apparatus and method for locating target area for electron microanalysis
Inventor:
Paul E. Larson
Patented Case
View Patent ↗
Granted: Jun 2, 1992
Filed: Apr 23, 1991
Inventor
Paul E. Larson
Assignee (at issue)
PerkinElmer, Inc.
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.