Granted Patent
Utility
US 6,764,022 · App. 10/210,773
Double sleeper for Getrac A3 fixed track
Inventors:
Winfried Mohr, Gerhard Berns, Gundolf Spitzner
Patented Case
View Patent ↗
Granted: Jul 20, 2004
Filed: Aug 1, 2002
Inventors
Winfried Mohr
Gerhard Berns
Gundolf Spitzner
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.