Granted Patent
Utility
US 5,618,063 · App. 08/416,283
Multicolor heat-sensitive verification and highlighting system
Inventors:
John C. H. Chang, Eric Wendler, Vance P. Gregory, Jr.
Patented Case
View Patent ↗
Granted: Apr 8, 1997
Filed: Apr 4, 1995
Inventors
John C. H. Chang
Eric Wendler
Vance P. Gregory, Jr.
Assignee (at issue)
Wallace Computer Services, 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.