Granted Patent
Utility
US 6,574,888 · App. 09/950,109
Expandable shoe and shoe assemblies
Inventors:
Harry Miller, Byong M. Shin, Kwon Dong Chil
Patented Case
View Patent ↗
Granted: Jun 10, 2003
Filed: Sep 10, 2001
Inventors
Harry Miller
Byong M. Shin
Kwon Dong Chil
Assignee (at issue)
Harry Miller Co., LLC
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.