Granted Patent
Utility
US 4,484,755 · App. 06/428,854
Wheeled cart for use by handicapped, invalid and frail persons
Inventor:
Rehrig Houston
Patented Case
View Patent ↗
Granted: Nov 27, 1984
Filed: Sep 30, 1982
Inventor
Rehrig Houston
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.