Granted Patent
Utility
US 4,964,650 · App. 07/240,676
Plastic x-frame cart
Inventor:
Thomas Dickinson
Patented Case
View Patent ↗
Granted: Oct 23, 1990
Filed: Sep 6, 1988
Inventor
Thomas Dickinson
Assignee (at issue)
Contico International, 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.