Granted Patent
Utility
US 5,350,476 · App. 08/151,314
Extrusion coating process for producing a high gloss polyethylene coating
Inventor:
Ray Edwards
Patented Case
View Patent ↗
Granted: Sep 27, 1994
Filed: Nov 12, 1993
Inventor
Ray Edwards
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.