Granted Patent
Utility
US 4,254,012 · App. 06/075,288
Reinforced composites containing cyanato resins
Inventor:
George E. Green
Patented Case
View Patent ↗
Granted: Mar 3, 1981
Filed: Sep 12, 1979
Inventor
George E. Green
Assignee (at issue)
Ciba-Geigy
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.