Granted Patent
Utility
US 6,807,754 · App. 10/228,758
Expandable shoe and shoe assemblies
Inventors:
Harry Miller, Byong M. Shin, Kwon Dong Chil
Patented Case
View Patent ↗
Granted: Oct 26, 2004
Filed: Aug 26, 2002
Inventors
Harry Miller
Byong M. Shin
Kwon Dong Chil
Assignee (at issue)
Inchworm, 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.