Granted Patent
Utility
US 5,114,735 · App. 07/625,541
Fragrance enhanced scratch-off layer for game cards
Inventors:
Louis Rua, Jr., Carl Schaab
Patented Case
View Patent ↗
Granted: May 19, 1992
Filed: Dec 11, 1990
Inventors
Louis Rua, Jr.
Carl Schaab
Assignee (at issue)
Webcraft Technologies, 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.