Granted Patent
Utility
US 5,386,003 · App. 08/033,198
Oil absorbing polymers
Inventors:
Carol J. Greene, Stephen H. Wu
Patented Case
View Patent ↗
Granted: Jan 31, 1995
Filed: Mar 15, 1993
Inventors
Carol J. Greene
Stephen H. Wu
Assignee (at issue)
Eastman Chemical Company
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.