Granted Patent
Utility
US 6,237,856 · App. 09/375,990
Method for installing a steady rail track
Inventors:
Hans Bachmann, Winfried Mohr
Patented Case
View Patent ↗
Granted: May 29, 2001
Filed: Aug 17, 1999
Inventors
Hans Bachmann
Winfried Mohr
Assignee (at issue)
Pfleiderer Infrastrukturtechnik GmbH & Co. KG
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.