Granted Patent
Utility
US 4,355,748 · App. 06/202,600
Film advance breakaway mechanism for slide mounter
Inventor:
Armer J. Willenbring
Patented Case
View Patent ↗
Granted: Oct 26, 1982
Filed: Oct 31, 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.