Granted Patent
Utility
US 4,163,114 · App. 05/837,838
Ester diol alkoxylates
Inventors:
Joseph V. Koleske, Robert J. Knopf
Patented Case
View Patent ↗
Granted: Jul 31, 1979
Filed: Sep 29, 1977
Inventors
Joseph V. Koleske
Robert J. Knopf
Assignee (at issue)
Union Carbide Corporation
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.