Granted Patent
Utility
US 5,223,357 · App. 07/829,418
Promotional display signage and method of manufacture
Inventor:
Douglas I. Lovison
Patented Case
View Patent ↗
Granted: Jun 29, 1993
Filed: Feb 3, 1992
Inventor
Douglas I. Lovison
Assignee (at issue)
Signs & Glassworks, 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.