Granted Patent
Utility
US 4,701,040 · App. 06/869,183
Identification card camera system having improved card classifying apparatus
Inventor:
Douglas E. Miller
Patented Case
View Patent ↗
Granted: Oct 20, 1987
Filed: May 30, 1986
Inventor
Douglas E. Miller
Assignee (at issue)
Polaroid Corporation
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.