Granted Patent
Utility
US 5,821,178 · App. 08/744,561
Nonwoven laminate barrier material
Inventor:
Bernard Cohen
Patented Case
View Patent ↗
Granted: Oct 13, 1998
Filed: Nov 6, 1996
Inventor
Bernard Cohen
Assignee (at issue)
Kimberly-Clark Worldwide, Inc.
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.