Granted Patent
Utility
US 5,089,560 · App. 07/461,232
Exopy resin with aromatic oligomer and rubber particles
Inventors:
Hugh C. Gardner, Richard H. Newman-Evans
Patented Case
View Patent ↗
Granted: Feb 18, 1992
Filed: Jan 5, 1990
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.