Granted Patent
Utility
US 6,085,875 · App. 08/748,200
Wedge-shaped disc brake shoe
Inventor:
Thomas H. Engle
Patented Case
View Patent ↗
Granted: Jul 11, 2000
Filed: Nov 12, 1996
Inventor
Thomas H. Engle
Assignee (at issue)
Westinghouse Air Brake Co.
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.