Granted Patent
Utility
US 5,711,313 · App. 08/785,415
Discoverable earplug
Inventor:
Thomas W. Fleming
Patented Case
View Patent ↗
Granted: Jan 27, 1998
Filed: Jan 23, 1997
Inventor
Thomas W. Fleming
Assignee (at issue)
Howard S. Leight and Associates, 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.