Granted Patent
Utility
US 6,091,832 · App. 08/909,402
Wearable personal audio loop apparatus
Inventors:
Daniel A. Shurman, Wayne Burdick
Patented Case
View Patent ↗
Granted: Jul 18, 2000
Filed: Aug 11, 1997
Inventors
Daniel A. Shurman
Wayne Burdick
Assignee (at issue)
Interval Research 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.