Granted Patent
Utility
US 5,389,156 · App. 08/061,187
Decontamination of hydrocarbon process equipment
Inventors:
Nishaneth K. Mehta, Richard W. Krajicek
Patented Case
View Patent ↗
Granted: Feb 14, 1995
Filed: May 13, 1993
Inventors
Nishaneth K. Mehta
Richard W. Krajicek
Assignee (at issue)
Servi-Tech, 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.