Granted Patent
Utility
US 5,364,572 · App. 08/010,241
Process for making high-strength synthetic aggregates
Inventors:
Muh Wu, George E. Wasson
Patented Case
View Patent ↗
Granted: Nov 15, 1994
Filed: Jan 28, 1993
Inventors
Muh Wu
George E. Wasson
Assignee (at issue)
Consolidation Coal Company
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.