Granted Patent
Utility
US 4,617,692 · App. 06/567,255
Tool for drilling and securing screw anchor to a wall
Inventors:
Michael E. Bond, Robert S. Noll
Patented Case
View Patent ↗
Granted: Oct 21, 1986
Filed: Dec 30, 1983
Inventors
Michael E. Bond
Robert S. Noll
Assignee (at issue)
Emhart 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.