Granted Patent
Utility
US 4,804,740 · App. 07/071,215
Cyanate ester with urea latent cure accelerator
Inventors:
Hugh C. Gardner, Richard H. Newman-Evans
Patented Case
View Patent ↗
Granted: Feb 14, 1989
Filed: Jul 8, 1987
Inventors
Hugh C. Gardner
Richard H. Newman-Evans
Assignee (at issue)
Amoco 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.