Granted Patent
Utility
US 4,454,297 · App. 06/458,225
2-[2-Aminoethoxy-2-ethylamino]alkanol as an epoxy curing agent
Inventors:
Harold G. Waddill, Robert L. Zimmerman
Patented Case
View Patent ↗
Granted: Jun 12, 1984
Filed: Jan 14, 1983
Inventors
Harold G. Waddill
Robert L. Zimmerman
Assignee (at issue)
Texaco 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.