Granted Patent
Utility
US 6,579,934 · App. 09/753,075
Reactive extrusion process for making modifiied biodegradable compositions
Inventors:
James H. Wang, David Michael Schertz
Patented Case
View Patent ↗
Granted: Jun 17, 2003
Filed: Dec 29, 2000
Inventors
James H. Wang
David Michael Schertz
Assignee (at issue)
Kimberly-Clark Worldwide, 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.