Granted Patent
Utility
US 6,135,249 · App. 08/993,069
Railway brake shoe backing plate with improved mounting alignment feature
Inventor:
Joseph C. Kahr
Patented Case
View Patent ↗
Granted: Oct 24, 2000
Filed: Dec 18, 1997
Inventor
Joseph C. Kahr
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.