Granted Patent
Utility
US 4,764,776 · App. 07/071,973
Thermo transfer printer
Inventors:
Hubert Mugrauer, Guenther Haass
Patented Case
View Patent ↗
Granted: Aug 16, 1988
Filed: Jul 10, 1987
Inventors
Hubert Mugrauer
Guenther Haass
Assignee (at issue)
Siemens Aktiengesellschaft
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.