Granted Patent
Utility
US 6,562,755 · App. 09/699,486
Thermal paper with security features
Inventors:
Wendell B. Halbrook, Jr., Mary Ann Wehr
Patented Case
View Patent ↗
Granted: May 13, 2003
Filed: Oct 31, 2000
Inventors
Wendell B. Halbrook, Jr.
Mary Ann Wehr
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.