Granted Patent
Utility
US 6,572,190 · App. 09/881,795
Lumbar support for a chair
Inventors:
Marcus C. Koepke, Jay R. Machael, Matthew J. Phillips, Douglas A. Schroeder, Craig H. Schultz, Erik A. Steffensen
Patented Case
View Patent ↗
Granted: Jun 3, 2003
Filed: Jun 15, 2001
Inventors
Marcus C. Koepke
Jay R. Machael
Matthew J. Phillips
Douglas A. Schroeder
Craig H. Schultz
Erik A. Steffensen
Assignee (at issue)
HON Technology 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.