Granted Patent
Utility
US 4,696,352 · App. 06/840,309
Insert for a drilling tool bit and a method of drilling therewith
Inventors:
Sergej-Tomislav Buljan, J. Gary Baldoni
Patented Case
View Patent ↗
Granted: Sep 29, 1987
Filed: Mar 17, 1986
Inventors
Sergej-Tomislav Buljan
J. Gary Baldoni
Assignee (at issue)
GTE Laboratories Incorporated
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.