Granted Patent
Utility
US 4,138,262 · App. 05/724,993
Imaging film comprising bismuth image-forming layer
Inventors:
Harvey H. Wacks, Masatsugu Izu, Donald J. Sarrach
Patented Case
View Patent ↗
Granted: Feb 6, 1979
Filed: Sep 20, 1976
Inventors
Harvey H. Wacks
Masatsugu Izu
Donald J. Sarrach
Assignee (at issue)
Energy Conversion Devices, 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.