Granted Patent
Utility
US 5,866,637 · App. 08/681,543
Magnetic thermal transfer ribbon with non-metallic magnets
Inventor:
Michael A. Lorenz
Patented Case
View Patent ↗
Granted: Feb 2, 1999
Filed: Jul 23, 1996
Inventor
Michael A. Lorenz
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.