Granted Patent
Utility
US 5,011,813 · App. 07/495,414
Thermal transfer printing
Inventors:
Roy Bradbury, Peter A. Gemmell, Richard A. Hann
Patented Case
View Patent ↗
Granted: Apr 30, 1991
Filed: Mar 19, 1990
Inventors
Roy Bradbury
Peter A. Gemmell
Richard A. Hann
Assignee (at issue)
IMPERIAL CHEMICAL INDUSTRIES LIMITED
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.