Granted Patent
Utility
US 5,577,447 · App. 08/489,651
Automatiac railway fastener remover
Inventors:
Robert M. Weber, William D. Straub
Patented Case
View Patent ↗
Granted: Nov 26, 1996
Filed: Jun 12, 1995
Inventors
Robert M. Weber
William D. Straub
Assignee (at issue)
Oak 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.