Granted Patent
Utility
US 6,517,989 · App. 10/087,670
Retrofitted self-developing film assemblages and methods of making the same
Inventors:
John E. Meschter, Harry R. Parsons
Patented Case
View Patent ↗
Granted: Feb 11, 2003
Filed: Mar 1, 2002
Inventors
John E. Meschter
Harry R. Parsons
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.