Granted Patent
Utility
US 6,135,136 · App. 08/947,522
System for draining and recovering coolant from a motor vehicle cooling system
Inventor:
Thomas L. Klamm
Patented Case
View Patent ↗
Granted: Oct 24, 2000
Filed: Oct 2, 1997
Inventor
Thomas L. Klamm
Assignee (at issue)
UView Ultraviolet Systems, 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.