Granted Patent
Utility
US 5,970,795 · App. 08/908,256
Apparatus and method for testing attenuation of in-use insert hearing protectors
Inventors:
Michael F. Seidmann, Roger P. Juneau, Juan H. Sanchez, Gregory R. Siegle
Patented Case
View Patent ↗
Granted: Oct 26, 1999
Filed: Aug 7, 1997
Inventors
Michael F. Seidmann
Roger P. Juneau
Juan H. Sanchez
Gregory R. Siegle
Assignee (at issue)
Sound Technologies, Inc.
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.