Granted Patent
Utility
US 5,163,345 · App. 07/840,942
Spring-loaded magnetic driver and method of assembly thereof
Inventors:
Jimmy T. Doan, Scott W. Predny
Patented Case
View Patent ↗
Granted: Nov 17, 1992
Filed: Feb 25, 1992
Inventors
Jimmy T. Doan
Scott W. Predny
Assignee (at issue)
Snap-on Tools Company
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.