Granted Patent
Utility
US 5,336,967 · App. 07/902,361
Structure for a multiple section photomultiplier tube
Inventors:
Charles M. Tomasetti, Fred A. Helvy, Donald B. Kaiser
Patented Case
View Patent ↗
Granted: Aug 9, 1994
Filed: Jun 22, 1992
Inventors
Charles M. Tomasetti
Fred A. Helvy
Donald B. Kaiser
Assignee (at issue)
Burle Technologies, LLC
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.