Granted Patent
Utility
US 6,526,645 · App. 10/091,153
Method for transferring drilling energy to a cutting member and method of constructing a drilling energy transfer member
Inventor:
Jack W. Romano
Patented Case
View Patent ↗
Granted: Mar 4, 2003
Filed: Mar 4, 2002
Inventor
Jack W. Romano
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.