Granted Patent
Utility
US 4,320,817 · App. 06/073,151
Combined chair and stool apparatus
Inventors:
Silas J. Knoke, James F. Stamper
Patented Case
View Patent ↗
Granted: Mar 23, 1982
Filed: Sep 7, 1979
Inventors
Silas J. Knoke
James F. Stamper
Assignee (at issue)
Lear Siegler, 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.