Granted Patent
Utility
US 5,860,474 · App. 08/882,970
Through-tubing rotary drilling
Inventors:
Daniel Scott Stoltz, David G. Nims
Patented Case
View Patent ↗
Granted: Jan 19, 1999
Filed: Jun 26, 1997
Inventors
Daniel Scott Stoltz
David G. Nims
Assignee (at issue)
Atlantic Richfield 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.