Granted Patent
Utility
US 4,608,434 · App. 06/789,679
Metal carboxylate/alcohol curing catalyst for polycyanate ester of polyhydric phenol
Inventor:
David A. Shimp
Patented Case
View Patent ↗
Granted: Aug 26, 1986
Filed: Oct 21, 1985
Inventor
David A. Shimp
Assignee (at issue)
Celanese GmbH
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.