Granted Patent
Utility
US 5,419,839 · App. 08/281,769
Apparatus and method for treating waste sludge
Inventors:
Earle Haley, Fred R. Huege, Vernon L. Moore, Tom Elliston
Patented Case
View Patent ↗
Granted: May 30, 1995
Filed: Jul 28, 1994
Inventors
Earle Haley
Fred R. Huege
Vernon L. Moore
Tom Elliston
Assignee (at issue)
Chemical Lime 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.