Granted Patent
Utility
US 5,285,973 · App. 07/914,155
Close tolerance shredder
Inventors:
Billy D. Goforth, Charles L. Goforth, Joe G. Brooks, J. Douglas Brooks
Patented Case
View Patent ↗
Granted: Feb 15, 1994
Filed: Jul 15, 1992
Inventors
Billy D. Goforth
Charles L. Goforth
Joe G. Brooks
J. Douglas Brooks
Assignee (at issue)
Advanced Environmental Recycling Technologies, Inc.
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.