Granted Patent
Utility
US 4,345,152 · App. 06/176,735
Magnetic lens
Inventor:
Robert L. Gerlach
Patented Case
View Patent ↗
Granted: Aug 17, 1982
Filed: Aug 11, 1980
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.