Granted Patent
Utility
US 4,345,754 · App. 06/200,933
Photographic stacking device
Inventor:
Armer J. Willenbring
Patented Case
View Patent ↗
Granted: Aug 24, 1982
Filed: Oct 27, 1980
Inventor
Armer J. Willenbring
Assignee (at issue)
Pako 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.