Granted Patent
Utility
US 4,335,304 · App. 06/174,022
Signal detection mechanism from electron multiplier
Inventor:
Paul W. Palmberg
Patented Case
View Patent ↗
Granted: Jun 15, 1982
Filed: Jul 31, 1980
Inventor
Paul W. Palmberg
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.