Granted Patent
Utility
US 4,313,677 · App. 06/126,871
Neghold assembly for photographic printer
Inventor:
James F. Stewart
Patented Case
View Patent ↗
Granted: Feb 2, 1982
Filed: Mar 3, 1980
Inventor
James F. Stewart
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.