Granted Patent
Utility
US 5,315,944 · App. 08/066,626
Machine for automatically changing lower-thread bobbins
Inventor:
Peter Reinders
Patented Case
View Patent ↗
Granted: May 31, 1994
Filed: May 25, 1993
Inventor
Peter Reinders
Assignee (at issue)
Carl Schmale GmbH & Co.
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.