Granted Patent
Utility
US 4,663,518 · App. 06/793,176
Optical storage identification card and read/write system
Inventors:
Alan L. Borror, Ernest W. Ellis, Faramarz Faramarzpour, Hugh R. MacKenzie, Donald A. McGowan
Patented Case
View Patent ↗
Granted: May 5, 1987
Filed: Oct 31, 1985
Inventors
Alan L. Borror
Ernest W. Ellis
Faramarz Faramarzpour
Hugh R. MacKenzie
Donald A. McGowan
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.