Granted Patent
Utility
US 4,759,429 · App. 07/018,410
Wedge and roller brake actuator
Inventor:
Hugh G. Margetts
Patented Case
View Patent ↗
Granted: Jul 26, 1988
Filed: Feb 25, 1987
Inventor
Hugh G. Margetts
Assignee (at issue)
Lucas Industries public limited 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.