Granted Patent
Utility
US 4,276,352 · App. 06/087,138
Reinforced composites containing unsaturated polyimide resins
Inventor:
George E. Green
Patented Case
View Patent ↗
Granted: Jun 30, 1981
Filed: Oct 22, 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.