Granted Patent
Utility
US 4,863,787 · App. 06/884,139
Damage tolerant composites containing infusible particles
Inventor:
Irena Gawin
Patented Case
View Patent ↗
Granted: Sep 5, 1989
Filed: Jul 9, 1986
Inventor
Irena Gawin
Assignee (at issue)
HERCULES LLC
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.