Granted Patent
Utility
US 5,147,595 · App. 07/734,555
Apparatus and method for reducing plastic film neck-in
Inventor:
Bruce Sanderford
Patented Case
View Patent ↗
Granted: Sep 15, 1992
Filed: Jul 23, 1991
Inventor
Bruce Sanderford
Assignee (at issue)
James River II, 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.