Granted Patent
Utility
US 6,749,909 · App. 09/739,761
Thermal transfer medium and method of making thereof
Inventors:
Mark E. Keeton, Thomas J. Obringer
Patented Case
View Patent ↗
Granted: Jun 15, 2004
Filed: Dec 20, 2000
Inventors
Mark E. Keeton
Thomas J. Obringer
Assignee (at issue)
NCR Corporation
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.