Granted Patent
Utility
US 4,276,368 · App. 06/035,803
Photoinduced migration of silver into chalcogenide layer
Inventors:
Adam Heller, King Leung Tai, Richard G. Vadimsky
Patented Case
View Patent ↗
Granted: Jun 30, 1981
Filed: May 4, 1979
Inventors
Adam Heller
King Leung Tai
Richard G. Vadimsky
Assignee (at issue)
Bell Telephone Laboratories, 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.