Granted Patent
Utility
US 5,280,718 · App. 07/923,678
Transducer health and offset calibration processing system
Inventors:
John W. Drake, David J. Pcsolar, James A. Wood
Patented Case
View Patent ↗
Granted: Jan 25, 1994
Filed: Aug 3, 1992
Inventors
John W. Drake
David J. Pcsolar
James A. Wood
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.