Granted Patent
Utility
US 6,589,621 · App. 09/108,620
Thermally stable polyetheramines
Inventors:
John Beckerdite, Terry W. Glass, Joe F. Sanford, David Shau Chew Wang, Jerry E. White, Peter T. Keillor, III, Thomas E. Moseman
Patented Case
View Patent ↗
Granted: Jul 8, 2003
Filed: Jul 1, 1998
Inventors
John Beckerdite
Terry W. Glass
Joe F. Sanford
David Shau Chew Wang
Jerry E. White
Peter T. Keillor, III
Thomas E. Moseman
Assignee (at issue)
Dow Global Technologies LLC
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.