Granted Patent
Utility
US 6,266,971 · App. 09/470,626
Refrigerant charge valve
Inventors:
Fred Georg Schroder, Zhongping Zeng, Joseph Nader
Patented Case
View Patent ↗
Granted: Jul 31, 2001
Filed: Dec 22, 1999
Inventors
Fred Georg Schroder
Zhongping Zeng
Joseph Nader
Assignee (at issue)
Visteon Global Technologies, 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.