Granted Patent
Utility
US 4,018,071 · App. 05/621,209
Spring winding machine with improved pitch mechanism
Inventor:
Bernard P. Lampietti
Patented Case
View Patent ↗
Granted: Apr 19, 1977
Filed: Oct 9, 1975
Inventor
Bernard P. Lampietti
Assignee (at issue)
Torin 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.