Granted Patent
Utility
US 4,479,679 · App. 06/271,665
Body weight chair control
Inventors:
Bernard J. Fries, Frederick S. Faiks, Donald D. Korell
Patented Case
View Patent ↗
Granted: Oct 30, 1984
Filed: Jun 8, 1981
Inventors
Bernard J. Fries
Frederick S. Faiks
Donald D. Korell
Assignee (at issue)
Steelcase 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.