Granted Patent
Utility
US 5,335,788 · App. 07/859,037
Self-opening polyethylene bag stack and process for producing same
Inventors:
M. Wayne Beasley, Wade D. Fletcher, Harry B. Wilfong, Jr.
Patented Case
View Patent ↗
Granted: Aug 9, 1994
Filed: Mar 27, 1992
Inventors
M. Wayne Beasley
Wade D. Fletcher
Harry B. Wilfong, Jr.
Assignee (at issue)
Sonoco Products 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.