Granted Patent
Utility
US 4,624,558 · App. 06/787,812
Microimage recorder
Inventor:
Delmar R. Johnson
Patented Case
View Patent ↗
Granted: Nov 25, 1986
Filed: Oct 15, 1985
Inventor
Delmar R. Johnson
Assignee (at issue)
Bell and Howell, LLC
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.