Granted Patent
Utility
US 4,878,461 · App. 07/213,651
Variable camshaft timing system
Inventors:
Samuel J. Sapienza, IV, Willem Nicolaas Van Vuuren, Benjamin G. Shirey, Russell J. Wakeman
Patented Case
View Patent ↗
Granted: Nov 7, 1989
Filed: Jun 30, 1988
Inventors
Samuel J. Sapienza, IV
Willem Nicolaas Van Vuuren
Benjamin G. Shirey
Russell J. Wakeman
Assignee (at issue)
Siemens-Bendix Automotive Electronics L.P.
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.