Granted Patent
Utility
US 6,232,715 · App. 09/341,701
Photoelectric multiplier tube of reduced length
Inventor:
Pierre L'Hermite
Patented Case
View Patent ↗
Granted: May 15, 2001
Filed: Jul 27, 1999
Inventor
Pierre L'Hermite
Assignee (at issue)
Photonis
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.