Granted Patent
Utility
US 4,359,661 · App. 06/182,375
Geiger-Mueller tube with tungsten liner
Inventor:
Nicolas Mitrofanov
Patented Case
View Patent ↗
Granted: Nov 16, 1982
Filed: Aug 29, 1980
Inventor
Nicolas Mitrofanov
Assignee (at issue)
The Harshaw Chemical Company
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.