Granted Patent
Utility
US 6,701,557 · App. 09/996,457
Single piece foam toppers with perimeter areas having variable support and firmness properties
Inventor:
Bruce G. Barman
Patented Case
View Patent ↗
Granted: Mar 9, 2004
Filed: Nov 29, 2001
Inventor
Bruce G. Barman
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.