Granted Patent
Utility
US 4,609,926 · App. 06/728,713
Ribbon transfer color-on-demand resistive ribbon printing
Inventors:
Ari Aviram, Derek B. Dove
Patented Case
View Patent ↗
Granted: Sep 2, 1986
Filed: Apr 30, 1985
Inventors
Ari Aviram
Derek B. Dove
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.