Granted Patent
Utility
US 6,447,629 · App. 09/542,570
Digital thermal printing process using reactive ink
Inventors:
Kimberlee Thompson, Barbara Wagner, Ming Xu
Patented Case
View Patent ↗
Granted: Sep 10, 2002
Filed: Apr 4, 2000
Inventors
Kimberlee Thompson
Barbara Wagner
Ming Xu
Assignee (at issue)
Sawgrass Systems, 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.