Granted Patent
Utility
US 4,893,826 · App. 07/046,828
Mobility support device
Inventors:
Adele E. Ward, J. R. Kingsley Ward, Kevin R. Lunau, Jeffrey D. Stringer, John H. Royce, A. Edward Moore
Patented Case
View Patent ↗
Granted: Jan 16, 1990
Filed: May 6, 1987
Inventors
Adele E. Ward
J. R. Kingsley Ward
Kevin R. Lunau
Jeffrey D. Stringer
John H. Royce
A. Edward Moore
Assignee (at issue)
Canhart Industries, 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.