Granted Patent
Utility
US 5,100,800 · App. 07/245,592
Microorganism for degrading toxic waste materials
Inventors:
Charles F. Kulpa, Michael G. Johnston
Patented Case
View Patent ↗
Granted: Mar 31, 1992
Filed: Sep 19, 1988
Inventors
Charles F. Kulpa
Michael G. Johnston
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.