Granted Patent
Utility
US 4,820,685 · App. 07/146,420
Transfer sheets for thermal transfer recording
Inventor:
Yukichi Murata
Patented Case
View Patent ↗
Granted: Apr 11, 1989
Filed: Jan 21, 1988
Inventor
Yukichi Murata
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.