Granted Patent
Utility
US 5,201,333 · App. 07/757,200
Folding walker
Inventors:
Shay Shalmon, Ronald M. Simon
Patented Case
View Patent ↗
Granted: Apr 13, 1993
Filed: Sep 10, 1991
Inventors
Shay Shalmon
Ronald M. Simon
Assignee (at issue)
Lumex, 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.