Granted Patent
Utility
US 4,612,221 · App. 06/810,908
Multilayer food wrap with cling
Inventors:
Edward N. Biel, George F. Kirkpatrick
Patented Case
View Patent ↗
Granted: Sep 16, 1986
Filed: Dec 20, 1985
Inventors
Edward N. Biel
George F. Kirkpatrick
Assignee (at issue)
Union Carbide Corporation
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.