Granted Patent
Utility
US 4,360,556 · App. 06/295,990
Foamed low density polyethylene sheet material and carrier
Inventor:
James E. Heider
Patented Case
View Patent ↗
Granted: Nov 23, 1982
Filed: Aug 25, 1981
Inventor
James E. Heider
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.