Granted Patent
Utility
US 4,960,036 · App. 07/118,372
Tamper-resistant brake actuator
Inventors:
Allen L. Gummer, Graydon J. Choinski, David W. Brooks
Patented Case
View Patent ↗
Granted: Oct 2, 1990
Filed: Nov 6, 1987
Inventors
Allen L. Gummer
Graydon J. Choinski
David W. Brooks
Assignee (at issue)
INDIAN HEAD INDUSTRIES, INC.
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.