Granted Patent
Utility
US 4,736,009 · App. 06/946,731
Partially alkylated triamines and higher polyamines as curing agents in polyurethane manufacture by reaction injection molding
Inventors:
David W. House, Ray V. Scott, Jr., William M. Baumann
Patented Case
View Patent ↗
Granted: Apr 5, 1988
Filed: Dec 29, 1986
Inventors
David W. House
Ray V. Scott, Jr.
William M. Baumann
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.