Granted Patent
Utility
US 5,196,284 · App. 07/594,501
Erasable phase change optical recording elements and methods
Inventors:
Kee-Chuan Pan, Yuan-Sheng Tyan, Fridrich Vazan
Patented Case
View Patent ↗
Granted: Mar 23, 1993
Filed: Oct 9, 1990
Inventors
Kee-Chuan Pan
Yuan-Sheng Tyan
Fridrich Vazan
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.