Granted Patent
Utility
US 4,946,928 · App. 07/310,127
Curable resin from cyanate aromatic ester and propargyl aromatic ether
Inventors:
Roy J. Jackson, Anthony M. Pigneri
Patented Case
View Patent ↗
Granted: Aug 7, 1990
Filed: Feb 15, 1989
Inventors
Roy J. Jackson
Anthony M. Pigneri
Assignee (at issue)
SHELL OIL 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.