Granted Patent
Utility
US 4,317,564 · App. 06/186,187
Film tray assembly for photographic film cutter
Inventors:
Armer J. Willenbring, Warren J. Osby, James W. Gausman
Patented Case
View Patent ↗
Granted: Mar 2, 1982
Filed: Sep 11, 1980
Inventors
Armer J. Willenbring
Warren J. Osby
James W. Gausman
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.