Granted Patent
Utility
US 6,263,533 · App. 09/586,164
Extruded foam reinforcement structures for innerspring assemblies and mattresses
Inventors:
Said Dimitry, William Freeman
Patented Case
View Patent ↗
Granted: Jul 24, 2001
Filed: Jun 2, 2000
Inventors
Said Dimitry
William Freeman
Assignee (at issue)
SEALY TECHNOLOGY 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.