Granted Patent
Utility
US 5,352,282 · App. 08/078,722
Color changing compositions
Inventor:
Richard E. Miller
Patented Case
View Patent ↗
Granted: Oct 4, 1994
Filed: Jun 16, 1993
Inventor
Richard E. Miller
Assignee (at issue)
BINNEY & SMITH 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.