Granted Patent
Utility
US 5,128,178 · App. 07/574,636
Method for suppressing dust emissions from bulk solids
Inventor:
Donald Carroll Roe
Patented Case
View Patent ↗
Granted: Jul 7, 1992
Filed: Aug 29, 1990
Inventor
Donald Carroll Roe
Assignee (at issue)
Betz Laboratories, 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.