Granted Patent
Utility
US 5,169,710 · App. 07/750,964
Fiber-reinforced composites toughened with porous resin particles
Inventors:
Shahid P. Qureshi, Richard E. Hoffman, Richard H. Newman-Evans
Patented Case
View Patent ↗
Granted: Dec 8, 1992
Filed: Aug 28, 1991
Inventors
Shahid P. Qureshi
Richard E. Hoffman
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.