Granted Patent
Utility
US 4,021,291 · App. 05/621,119
Automatic hot needle attachment for bag wicketer
Inventor:
Richard L. Joice
Patented Case
View Patent ↗
Granted: May 3, 1977
Filed: Oct 9, 1975
Inventor
Richard L. Joice
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.