Granted Patent
Utility
US 4,602,049 · App. 06/778,647
Novel product and process of isocyanurate production
Inventor:
Dale F. Regelman
Patented Case
View Patent ↗
Granted: Jul 22, 1986
Filed: Sep 23, 1985
Inventor
Dale F. Regelman
Assignee (at issue)
THE DOW CHEMICAL COMPANY
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.