Granted Patent
Utility
US 4,457,960 · App. 06/371,781
Polymeric and film structure for use in shrink bags
Inventor:
David L. Newsome
Patented Case
View Patent ↗
Granted: Jul 3, 1984
Filed: Apr 26, 1982
Inventor
David L. Newsome
Assignee (at issue)
American Can 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.