Granted Patent
Utility
US 6,742,584 · App. 09/787,597
Apparatus for facilitating the connection of tubulars using a top drive
Inventor:
Robert Patrick Appleton
Patented Case
View Patent ↗
Granted: Jun 1, 2004
Filed: Jul 11, 2001
Inventor
Robert Patrick Appleton
Assignee (at issue)
TESCOM 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.