Granted Patent
Utility
US 5,106,171 · App. 07/565,308
Antilock brake system with step-down release control
Inventors:
Kevin G. Leppek, Martin A. Hogan, Peter J. Spadafora
Patented Case
View Patent ↗
Granted: Apr 21, 1992
Filed: Aug 9, 1990
Inventors
Kevin G. Leppek
Martin A. Hogan
Peter J. Spadafora
Assignees (at issue)
General Motors LLC
DELCO ELECTRONICS CORPORATION
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.