Granted Patent
Utility
US 5,401,001 · App. 08/093,830
Internal combustion engine exhaust control valve
Inventors:
John E. Cook, Gary Everingham, David J. Hazen, Gordon W. Sweetnam, William C. Gillier
Patented Case
View Patent ↗
Granted: Mar 28, 1995
Filed: Jul 19, 1993
Inventors
John E. Cook
Gary Everingham
David J. Hazen
Gordon W. Sweetnam
William C. Gillier
Assignees (at issue)
Siemens Automotive Corporation
Ford Motor Company
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.