Granted Patent
Utility
US 5,018,974 · App. 07/527,137
Coloring book or the like with ink-reactive, fragrance-releasing areas
Inventors:
David W. Carnahan, Paul J. A. French, Richard K. Maury, Gary L. Akins, Philip J. Oaten
Patented Case
View Patent ↗
Granted: May 28, 1991
Filed: May 22, 1990
Inventors
David W. Carnahan
Paul J. A. French
Richard K. Maury
Gary L. Akins
Philip J. Oaten
Assignees (at issue)
Arcade, Inc.
Perfume International, 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.