Granted Patent
Utility
US 5,077,181 · App. 07/519,335
Optical recording materials comprising antimony-tin alloys including a third element
Inventors:
Kee-Chuan Pan, Yuan-Sheng Tyan, Fridrich Vazan, Donald R. Preuss
Patented Case
View Patent ↗
Granted: Dec 31, 1991
Filed: May 2, 1990
Inventors
Kee-Chuan Pan
Yuan-Sheng Tyan
Fridrich Vazan
Donald R. Preuss
Assignee (at issue)
EASTMAN KODAK 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.