Granted Patent
Utility
US 6,490,979 · App. 09/846,812
Inclined shopping cart conveyor system
Inventors:
Robert H. Pfleger, Michael Sohn, Craig S. Schmidt
Patented Case
View Patent ↗
Granted: Dec 10, 2002
Filed: May 1, 2001
Inventors
Robert H. Pfleger
Michael Sohn
Craig S. Schmidt
Assignee (at issue)
Pflow 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.