Granted Patent
Utility
US 4,827,348 · App. 07/189,473
Exposure control system for dual mode electronic imaging camera
Inventors:
Paul W. Ernest, Allan C. Green
Patented Case
View Patent ↗
Granted: May 2, 1989
Filed: May 2, 1988
Inventors
Paul W. Ernest
Allan C. Green
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.