Granted Patent
Utility
US 6,432,496 · App. 09/103,689
High density polyethylene films with improved barrier properties
Inventor:
Daniel William Klosiewicz
Patented Case
View Patent ↗
Granted: Aug 13, 2002
Filed: Jun 5, 1998
Inventor
Daniel William Klosiewicz
Assignee (at issue)
Eastman Chemical Company
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.