Granted Patent
Utility
US 4,806,754 · App. 07/064,283
High luminosity spherical analyzer for charged particles
Inventor:
Robert L. Gerlach
Patented Case
View Patent ↗
Granted: Feb 21, 1989
Filed: Jun 19, 1987
Inventor
Robert L. Gerlach
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.