Granted Patent
Utility
US 4,634,102 · App. 06/812,588
Self-threading capstan drive
Inventors:
James Appling, John M. Franchuk
Patented Case
View Patent ↗
Granted: Jan 6, 1987
Filed: Dec 23, 1985
Inventors
James Appling
John M. Franchuk
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.