Granted Patent
Utility
US 5,913,617 · App. 08/805,205
Display system
Inventor:
Robert P. Helstern
Patented Case
View Patent ↗
Granted: Jun 22, 1999
Filed: Feb 27, 1997
Inventor
Robert P. Helstern
Assignee (at issue)
Eaton Corporation
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.