Granted Patent
Utility
US 4,709,003 · App. 06/836,872
Alkylated triamines and higher polyamines as curing agents in polyurethane manufacture
Inventors:
Ray V. Scott, Jr., William M. Baumann, David W. House
Patented Case
View Patent ↗
Granted: Nov 24, 1987
Filed: Mar 6, 1986
Inventors
Ray V. Scott, Jr.
William M. Baumann
David W. House
Assignee (at issue)
UOP 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.