Granted Patent
Utility
US 5,639,048 · App. 08/375,018
Cable tray system
Inventors:
Paul J. Bartholomew, Roger L. Vaught, Michael Jurgenliemk
Patented Case
View Patent ↗
Granted: Jun 17, 1997
Filed: Jan 19, 1995
Inventors
Paul J. Bartholomew
Roger L. Vaught
Michael Jurgenliemk
Assignee (at issue)
Thomas & Betts, 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.