Granted Patent
Utility
US 6,439,710 · App. 09/411,421
Printed media produced by permanent heat activated printing process
Inventors:
Nathan Hale, Ming Xu
Patented Case
View Patent ↗
Granted: Aug 27, 2002
Filed: Oct 1, 1999
Inventors
Nathan Hale
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.