Granted Patent
Utility
US 4,243,605 · App. 05/921,809
Novel isocyanates
Inventors:
William A. Eisenhardt, Jr., Eddie Hedaya, Spyros Theodoropulos
Patented Case
View Patent ↗
Granted: Jan 6, 1981
Filed: Jul 3, 1978
Inventors
William A. Eisenhardt, Jr.
Eddie Hedaya
Spyros Theodoropulos
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.