Granted Patent
Utility
US 4,938,992 · App. 07/427,921
Methods for thermal transfer with a semiconductor
Inventor:
Eric L. Mears
Patented Case
View Patent ↗
Granted: Jul 3, 1990
Filed: Oct 25, 1989
Inventor
Eric L. Mears
Assignee (at issue)
Varian, Inc.
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.