Granted Patent
Utility
US 6,062,649 · App. 09/034,188
Chair back construction
Inventors:
Duane F. Nagel, Daniel P. Beemer, Dale M. Groendal, Jeffrey A. Hall, Edward L. Tyler
Patented Case
View Patent ↗
Granted: May 16, 2000
Filed: Mar 3, 1998
Inventors
Duane F. Nagel
Daniel P. Beemer
Dale M. Groendal
Jeffrey A. Hall
Edward L. Tyler
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.