Granted Patent
Utility
US 4,398,705 · App. 06/240,763
Box spring assembly with interlocked formed wire spring components having limited deflection capabilities
Inventor:
Ned W. Mizelle
Patented Case
View Patent ↗
Granted: Aug 16, 1983
Filed: Mar 5, 1981
Inventor
Ned W. Mizelle
Assignee (at issue)
Hoover Universal, 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.