Granted Patent
Utility
US 4,774,702 · App. 07/075,224
Erasable optical memory employing a marmen alloy to effect phase-change erasing in a chalcogenide film
Inventor:
Jeffrey A. Giacomel
Patented Case
View Patent ↗
Granted: Sep 27, 1988
Filed: Jul 17, 1987
Inventor
Jeffrey A. Giacomel
Assignee (at issue)
LTV Aerospace and Defense Company
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.