Granted Patent
Utility
US 6,523,840 · App. 09/636,181
Combined shopping cart stroller
Inventors:
Dana J. Koppes, Eric Fickas, Vincent A. Gioia, Rodger Hays, Joni Hill, Paul P. Kolada, Thomas P. Martini, Jon M. Provencher, Kevin J. Vititoe
Patented Case
View Patent ↗
Granted: Feb 25, 2003
Filed: Aug 10, 2000
Inventors
Dana J. Koppes
Eric Fickas
Vincent A. Gioia
Rodger Hays
Joni Hill
Paul P. Kolada
Thomas P. Martini
Jon M. Provencher
Kevin J. Vititoe
Assignee (at issue)
Ohio Steel Corporation
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.