Granted Patent
Utility
US 4,429,037 · App. 06/445,417
Self-processing film unit with liquid applicator
Inventor:
Lawrence M. Douglas
Patented Case
View Patent ↗
Granted: Jan 31, 1984
Filed: Nov 30, 1982
Inventor
Lawrence M. Douglas
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.