Granted Patent
Utility
US 4,490,430 · App. 06/479,613
Self-supporting thermal ink
Inventors:
Hugh T. Findlay, Leonard M. Rood
Patented Case
View Patent ↗
Granted: Dec 25, 1984
Filed: Mar 28, 1983
Inventors
Hugh T. Findlay
Leonard M. Rood
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.