Granted Patent
Utility
US 5,268,230 · App. 07/843,043
Extrusion coating process for producing a high gloss polyethylene coating
Inventor:
Ray Edwards
Patented Case
View Patent ↗
Granted: Dec 7, 1993
Filed: Feb 28, 1992
Inventor
Ray Edwards
Assignee (at issue)
EASTMAN KODAK 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.