Granted Patent
Utility
US 5,113,176 · App. 07/612,611
Lumbar roll with audible alerting capability
Inventor:
Frank W. Harris
Patented Case
View Patent ↗
Granted: May 12, 1992
Filed: Nov 13, 1990
Inventor
Frank W. Harris
Assignee (at issue)
Staodyn, 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.