Granted Patent
Utility
US 5,688,556 · App. 08/625,129
Barrier films having vapor coated EVOH surfaces
Inventor:
John R. Wagner, Jr.
Patented Case
View Patent ↗
Granted: Nov 18, 1997
Filed: Apr 1, 1996
Inventor
John R. Wagner, Jr.
Assignee (at issue)
Mobil Oil Corporation
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.