Granted Patent
Utility
US 5,557,813 · App. 08/398,227
Knock down mattress system
Inventors:
C. Edward Steed, Ricky F. Gladney
Patented Case
View Patent ↗
Granted: Sep 24, 1996
Filed: Mar 3, 1995
Inventors
C. Edward Steed
Ricky F. Gladney
Assignee (at issue)
Simmons Holding Company, LLC.
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.