Granted Patent
Utility
US 4,921,177 · App. 07/259,529
String positioning device and method
Inventor:
Dale K. Blust
Patented Case
View Patent ↗
Granted: May 1, 1990
Filed: Oct 18, 1988
Inventor
Dale K. Blust
Assignee (at issue)
Figgie Inernational Inc.
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.