Granted Patent
Utility
US 6,054,074 · App. 09/395,537
Method for making manufactured aggregates from coal combustion by-products
Inventors:
Muh Wu, George E. Wasson
Patented Case
View Patent ↗
Granted: Apr 25, 2000
Filed: Sep 14, 1999
Inventors
Muh Wu
George E. Wasson
Assignee (at issue)
Consol, 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.