Granted Patent
Utility
US 4,497,070 · App. 06/450,403
Unitary leg and foot protective device
Inventor:
Soo S. Cho
Patented Case
View Patent ↗
Granted: Feb 5, 1985
Filed: Dec 16, 1982
Inventor
Soo S. Cho
Assignee (at issue)
Macho Products, 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.