Granted Patent
Utility
US 6,132,497 · App. 09/208,532
Dust suppression system
Inventor:
Randall L. Conklin
Patented Case
View Patent ↗
Granted: Oct 17, 2000
Filed: Dec 9, 1998
Inventor
Randall L. Conklin
Assignee (at issue)
RAG American 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.