Granted Patent
Utility
US 5,768,939 · App. 08/659,707
Method and apparatus for acoustic level measurements
Inventors:
Randall G. Quayle, James R. Pottebaum
Patented Case
View Patent ↗
Granted: Jun 23, 1998
Filed: Jun 10, 1996
Inventors
Randall G. Quayle
James R. Pottebaum
Assignee (at issue)
Kistler-Morse 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.