Granted Patent
Utility
US 4,399,173 · App. 06/336,592
Multilayer films comprising low pressure, low density polyethylene
Inventors:
John Anthony, Stuart J. Kurtz
Patented Case
View Patent ↗
Granted: Aug 16, 1983
Filed: Jan 4, 1982
Inventors
John Anthony
Stuart J. Kurtz
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.