Granted Patent
Utility
US 6,004,482 · App. 08/998,141
Stable aromatic amine composition, and a process for preparing color stable aromatic amines
Inventors:
Rick L. Adkins, Steven L. Schilling, Keith J. Headley
Patented Case
View Patent ↗
Granted: Dec 21, 1999
Filed: Dec 24, 1997
Inventors
Rick L. Adkins
Steven L. Schilling
Keith J. Headley
Assignee (at issue)
Bayer Aktiengesellschaft
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.