Granted Patent
Utility
US 4,226,522 · App. 05/961,691
Imaging device
Inventor:
Gerald F. Marshall
Patented Case
View Patent ↗
Granted: Oct 7, 1980
Filed: Nov 17, 1978
Inventor
Gerald F. Marshall
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.