Granted Patent
Utility
US 6,152,308 · App. 08/865,034
Mobile classifier for aggregates
Inventors:
Clarence Richard Kreiser, James F. Miller
Patented Case
View Patent ↗
Granted: Nov 28, 2000
Filed: May 29, 1997
Inventors
Clarence Richard Kreiser
James F. Miller
Assignee (at issue)
Marsulex Environmental Technologies 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.