Granted Patent
Utility
US 5,571,851 · App. 08/486,677
Reinforcing fillers for plastics systems
Inventors:
Gary M. Freeman, Carl J. Marshall, Jr.
Patented Case
View Patent ↗
Granted: Nov 5, 1996
Filed: Jun 7, 1995
Inventors
Gary M. Freeman
Carl J. Marshall, Jr.
Assignee (at issue)
J.M. Huber 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.