Granted Patent
Utility
US 5,878,897 · App. 08/708,312
Slack reduced lock member for a type E raiway coupler
Inventors:
Frank Lazzaro, Peter S. Mautino, Jeffrey D. Wurzer, MaryAnn Glover, Alvin G. Hurt
Patented Case
View Patent ↗
Granted: Mar 9, 1999
Filed: Sep 4, 1996
Inventors
Frank Lazzaro
Peter S. Mautino
Jeffrey D. Wurzer
MaryAnn Glover
Alvin G. Hurt
Assignee (at issue)
McConway & Torley, LLC
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.