Granted Patent
Utility
US 4,335,948 · App. 06/251,142
Film retriever
Inventor:
Vincent L. Cocco
Patented Case
View Patent ↗
Granted: Jun 22, 1982
Filed: Apr 6, 1981
Inventor
Vincent L. Cocco
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.