Granted Patent
Utility
US 4,779,293 · App. 07/072,806
Formed wire box spring with spring wire deck
Inventors:
Upton R. Dabney, John P. Kitchen
Patented Case
View Patent ↗
Granted: Oct 25, 1988
Filed: Jul 14, 1987
Inventors
Upton R. Dabney
John P. Kitchen
Assignee (at issue)
Hoover Limited
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.