Granted Patent
Utility
US 6,346,596 · App. 09/616,780
Gas barrier polymer composition
Inventors:
Thomas R. Mallen, Thomas A. Stevenson
Patented Case
View Patent ↗
Granted: Feb 12, 2002
Filed: Jul 14, 2000
Inventors
Thomas R. Mallen
Thomas A. Stevenson
Assignee (at issue)
Valspar 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.