Granted Patent
Utility
US 5,159,863 · App. 07/693,391
Adjustable face grooving tool holder
Inventor:
Vandell E. Simpson, III
Patented Case
View Patent ↗
Granted: Nov 3, 1992
Filed: Apr 30, 1991
Inventor
Vandell E. Simpson, III
Assignee (at issue)
Manchester Tool 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.