Granted Patent
Utility
US 5,963,345 · App. 08/821,485
Holographic stop sign
Inventor:
Ronald T. Smith
Patented Case
View Patent ↗
Granted: Oct 5, 1999
Filed: Mar 21, 1997
Inventor
Ronald T. Smith
Assignee (at issue)
DELCO ELECTRONICS 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.