Granted Patent
Utility
US 4,609,183 · App. 06/648,306
Shopping cart corral kit and method of assembling a corral from the component parts of the kit
Inventor:
Harrold Ulmer
Patented Case
View Patent ↗
Granted: Sep 2, 1986
Filed: Sep 7, 1984
Inventor
Harrold Ulmer
Assignee (at issue)
Whittar Industries, Ltd.
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.