Granted Patent
Utility
US 5,526,789 · App. 08/434,217
Internal combustion engine intake system with variable tuning
Inventors:
Robert A. Stein, William Francis Stockhausen
Patented Case
View Patent ↗
Granted: Jun 18, 1996
Filed: May 4, 1995
Inventors
Robert A. Stein
William Francis Stockhausen
Assignee (at issue)
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.