Granted Patent
Utility
US 4,038,446 · App. 05/504,111
Container with improved heat shrunk cellular sleeve
Inventor:
Roger R. Rhoads
Patented Case
View Patent ↗
Granted: Jul 26, 1977
Filed: Sep 9, 1974
Inventor
Roger R. Rhoads
Assignee (at issue)
Owens-Illinois 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.