Granted Patent
Utility
US 4,828,335 · App. 07/053,221
Control valve for vehicle anti-lock brake system
Inventors:
Edward Nelson Fuller, Gary A. Willi
Patented Case
View Patent ↗
Granted: May 9, 1989
Filed: May 22, 1987
Inventors
Edward Nelson Fuller
Gary A. Willi
Assignee (at issue)
KELSEY-HAYES-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.