Granted Patent
Utility
US 5,557,461 · App. 08/451,234
Omnidirectional retro-reflective roadway marker and the like
Inventor:
Charles W. Wyckoff
Patented Case
View Patent ↗
Granted: Sep 17, 1996
Filed: May 26, 1995
Inventor
Charles W. Wyckoff
Assignee (at issue)
Brite-Line Industries, Inc.
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.