Granted Patent
Utility
US 4,464,049 · App. 06/337,789
Illumination flicker meter
Inventor:
Eugene Schroeder
Patented Case
View Patent ↗
Granted: Aug 7, 1984
Filed: Jan 7, 1982
Inventor
Eugene Schroeder
Assignee (at issue)
Westinghouse Electric Company 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.