Granted Patent
Utility
US 5,500,302 · App. 08/234,471
Barrier film and method
Inventors:
Roger W. Phillips, Paul G. Coombs, Lauren R. Wendt
Patented Case
View Patent ↗
Granted: Mar 19, 1996
Filed: Apr 26, 1994
Inventors
Roger W. Phillips
Paul G. Coombs
Lauren R. Wendt
Assignee (at issue)
Flex Products, 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.