Granted Patent
Utility
US 5,620,520 · App. 08/269,172
Apparatus for producing coated fasteners having closed ends
Inventors:
Richard J. Duffy, Eugene D. Sessa
Patented Case
View Patent ↗
Granted: Apr 15, 1997
Filed: Jun 30, 1994
Inventors
Richard J. Duffy
Eugene D. Sessa
Assignee (at issue)
Nylok Fastener 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.