Granted Patent
Utility
US 6,290,152 · App. 09/320,940
Method for recycling asphalt material
Inventor:
Thomas J. Zickell
Patented Case
View Patent ↗
Granted: Sep 18, 2001
Filed: May 27, 1999
Inventor
Thomas J. Zickell
Assignee (at issue)
Environmental Reprocessing, 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.