Granted Patent
Utility
US 6,092,309 · App. 09/273,963
Heel and sole structure with inwardly projecting bulges
Inventor:
Harry W. Edwards
Patented Case
View Patent ↗
Granted: Jul 25, 2000
Filed: Mar 22, 1999
Inventor
Harry W. Edwards
Assignee (at issue)
Energaire 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.