Granted Patent
Utility
US 4,512,222 · App. 06/490,722
Loosening tool for tie rod sleeves
Inventor:
Steven L. Christophersen
Patented Case
View Patent ↗
Granted: Apr 23, 1985
Filed: May 2, 1983
Inventor
Steven L. Christophersen
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.