Granted Patent
Utility
US 4,950,939 · App. 07/244,948
Channel electron multipliers
Inventor:
Christopher H. Tosswill
Patented Case
View Patent ↗
Granted: Aug 21, 1990
Filed: Sep 15, 1988
Inventor
Christopher H. Tosswill
Assignee (at issue)
Galileo Electro-Optics Corporation
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.