Granted Patent
Utility
US 5,817,705 · App. 08/746,825
Short time frame process for producing extruded closed cell low density propylene polymer foams
Inventors:
Gary R. Wilkes, Jeffrey J. Stimler, Kim A. Bly, Harris A. Dunbar, Eugene R. Uhl
Patented Case
View Patent ↗
Granted: Oct 6, 1998
Filed: Nov 18, 1996
Inventors
Gary R. Wilkes
Jeffrey J. Stimler
Kim A. Bly
Harris A. Dunbar
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.