Granted Patent
Utility
US 6,688,333 · App. 10/248,767
Automotive coolant control valve
Inventors:
Allan McLane, William D. Kramer
Patented Case
View Patent ↗
Granted: Feb 10, 2004
Filed: Feb 14, 2003
Inventors
Allan McLane
William D. Kramer
Assignee (at issue)
Ranco Incorporated of Delaware
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.