Granted Patent
Utility
US 5,939,463 · App. 08/941,960
High productivity, low fugitive VOC emission foam process
Inventors:
Wen P. Wu, Gary A. Francis
Patented Case
View Patent ↗
Granted: Aug 17, 1999
Filed: Oct 1, 1997
Inventors
Wen P. Wu
Gary A. Francis
Assignee (at issue)
Tenneco 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.