Granted Patent
Utility
US 5,640,180 · App. 08/710,171
Low energy heat activated transfer printing process
Inventors:
Nathan Hale, Ming Xu
Patented Case
View Patent ↗
Granted: Jun 17, 1997
Filed: Sep 12, 1996
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.