Granted Patent
Utility
US 4,869,552 · App. 07/244,663
Flexible backrest assembly for a chair
Inventors:
Thomas H. Tolleson, Gregory M. Saul, R. Duane Ware
Patented Case
View Patent ↗
Granted: Sep 26, 1989
Filed: Sep 14, 1988
Inventors
Thomas H. Tolleson
Gregory M. Saul
R. Duane Ware
Assignee (at issue)
Shelby Williams Industries, 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.