Granted Patent
Utility
US 4,365,840 · App. 06/202,051
Seat with back cushion attachment
Inventors:
Norman J. Kehl, Richard C. Magnuson
Patented Case
View Patent ↗
Granted: Dec 28, 1982
Filed: Oct 30, 1980
Inventors
Norman J. Kehl
Richard C. Magnuson
Assignee (at issue)
Coach and Car Equipment 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.