Granted Patent
Utility
US 4,568,621 · App. 06/663,624
Thermal transfer printing processes with electroerosion and materials therefor
Inventors:
Ari Aviram, Mitchell S. Cohen
Patented Case
View Patent ↗
Granted: Feb 4, 1986
Filed: Oct 22, 1984
Inventors
Ari Aviram
Mitchell S. Cohen
Assignee (at issue)
International Business Machines 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.