Granted Patent
Utility
US 6,729,610 · App. 10/051,979
Elevated composite material springs with attachment fittings
Inventor:
Eugene Constantinescu
Patented Case
View Patent ↗
Granted: May 4, 2004
Filed: Jan 17, 2002
Inventor
Eugene Constantinescu
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.