Granted Patent
Utility
US 5,549,832 · App. 08/362,326
Vehicle coolant recycling
Inventors:
Kenneth W. Ische, Michael W. Johnson, William S. Dea, Thomas D. Chandler
Patented Case
View Patent ↗
Granted: Aug 27, 1996
Filed: Dec 22, 1994
Inventors
Kenneth W. Ische
Michael W. Johnson
William S. Dea
Thomas D. Chandler
Assignee (at issue)
Scepter Manufacturing, LLC.
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.