Granted Patent
Utility
US 4,672,089 · App. 06/707,835
Retroreflective sheeting
Inventors:
Robert M. Pricone, William N. Roberts
Patented Case
View Patent ↗
Granted: Jun 9, 1987
Filed: Mar 4, 1985
Inventors
Robert M. Pricone
William N. Roberts
Assignee (at issue)
ARTERICA 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.