Granted Patent
Utility
US 4,382,675 · App. 06/227,958
Apparatus for producing microform records from multiple data sources
Inventor:
Gerald F. Marshall
Patented Case
View Patent ↗
Granted: May 10, 1983
Filed: Jan 23, 1981
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.