Granted Patent
Utility
US 6,460,928 · App. 09/921,059
Seating unit including novel back construction
Inventors:
Glenn A. Knoblock, Arnold B. Dammermann, Larry DeKraker, Kevin A. Ekdahl, Kurt R. Heidmann, Gardner Klaasen, James A. Perkins, Gordon J. Peterson, Edward H. Punches, Charles P. Roossien, David S. Teppo, Michael Yancharas
Patented Case
View Patent ↗
Granted: Oct 8, 2002
Filed: Aug 2, 2001
Inventors
Glenn A. Knoblock
Arnold B. Dammermann
Larry DeKraker
Kevin A. Ekdahl
Kurt R. Heidmann
Gardner Klaasen
James A. Perkins
Gordon J. Peterson
Edward H. Punches
Charles P. Roossien
David S. Teppo
Michael Yancharas
Assignee (at issue)
Steelcase Development 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.