Granted Patent
Utility
US 6,159,574 · App. 08/458,968
Laminated visco-elastic support
Inventors:
Dag Landvik, Michael B. Allaway
Patented Case
View Patent ↗
Granted: Dec 12, 2000
Filed: Jun 2, 1995
Inventors
Dag Landvik
Michael B. Allaway
Assignee (at issue)
Fagerdala World Foams AB
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.