Granted Patent
Utility
US 5,698,144 · App. 08/694,298
Process for producing low density polyethylenic foam with atmospheric gases and polyglycols or polyglycol ethers
Inventors:
Gary R. Wilkes, Harris A. Dunbar, Kim A. Bly, Eugene R. Uhl
Patented Case
View Patent ↗
Granted: Dec 16, 1997
Filed: Aug 8, 1996
Inventors
Gary R. Wilkes
Harris A. Dunbar
Kim A. Bly
Eugene R. Uhl
Assignee (at issue)
Tenneco Protective Packaging, 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.