Granted Patent
Utility
US 5,196,392 · App. 07/736,714
Thermal transfer printing
Inventors:
Roy Bradbury, Ronald W. Kenyon, Derek Thorp
Patented Case
View Patent ↗
Granted: Mar 23, 1993
Filed: Jul 26, 1991
Inventors
Roy Bradbury
Ronald W. Kenyon
Derek Thorp
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.