Granted Patent
Utility
US 5,873,628 · App. 08/811,499
Dynamic posture chair
Inventors:
Peter B. Allard, Jack K. Hockenberry, Harry C. Sweere
Patented Case
View Patent ↗
Granted: Feb 23, 1999
Filed: Mar 5, 1997
Inventors
Peter B. Allard
Jack K. Hockenberry
Harry C. Sweere
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.