Granted Patent
Utility
US 4,445,762 · App. 06/454,047
Encoded shutter blade apparatus
Inventor:
A. David Boccuti
Patented Case
View Patent ↗
Granted: May 1, 1984
Filed: Dec 28, 1982
Inventor
A. David Boccuti
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.