Granted Patent
Utility
US 4,976,501 · App. 07/387,470
Fluid accumulator for use in a vehicle anti-lock brake system
Inventors:
Gerald M. Sivulka, Peter Every
Patented Case
View Patent ↗
Granted: Dec 11, 1990
Filed: Jul 31, 1989
Inventors
Gerald M. Sivulka
Peter Every
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.