Granted Patent
Utility
US 5,956,536 · App. 08/700,820
Camera optical accessories therefor and method of use
Inventors:
Joseph J. Dow, Jeffrey James Parker, Duncan C. Sorli
Patented Case
View Patent ↗
Granted: Sep 21, 1999
Filed: Aug 21, 1996
Inventors
Joseph J. Dow
Jeffrey James Parker
Duncan C. Sorli
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.