Granted Patent
Utility
US 5,204,179 · App. 07/678,880
Multilayered polyolefin structure
Inventors:
Philip S. Baker, Daniel L. Donk
Patented Case
View Patent ↗
Granted: Apr 20, 1993
Filed: Mar 29, 1991
Inventors
Philip S. Baker
Daniel L. Donk
Assignee (at issue)
Mobil Oil 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.