Granted Patent
Utility
US 5,841,343 · App. 08/515,343
Buzzer with rotary volume adjustment
Inventors:
Kenyon A. Hapke, William G. Roos, Spencer C. Schantz
Patented Case
View Patent ↗
Granted: Nov 24, 1998
Filed: Aug 15, 1995
Inventors
Kenyon A. Hapke
William G. Roos
Spencer C. Schantz
Assignee (at issue)
U.S. Controls 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.