Granted Patent
Utility
US 5,145,018 · App. 07/739,884
Drill bit for drilling along an arcuate path
Inventors:
Thomas O. Schimke, Wilfred M. McCord, Jr.
Patented Case
View Patent ↗
Granted: Sep 8, 1992
Filed: Aug 2, 1991
Inventors
Thomas O. Schimke
Wilfred M. McCord, Jr.
Assignee (at issue)
Vermont American Corporation
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.