Granted Patent
Utility
US 5,114,542 · App. 07/587,742
Nonrecovery coke oven battery and method of operation
Inventors:
James H. Childress, Steve Newberry, Charles W. Pruitt
Patented Case
View Patent ↗
Granted: May 19, 1992
Filed: Sep 25, 1990
Inventors
James H. Childress
Steve Newberry
Charles W. Pruitt
Assignee (at issue)
Jewell Coal and Coke 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.