Granted Patent
Utility
US 6,682,264 · App. 10/084,542
Method of accurate trenchless installation of underground pipe
Inventor:
John Hamilton McGillis
Patented Case
View Patent ↗
Granted: Jan 27, 2004
Filed: Feb 26, 2002
Inventor
John Hamilton McGillis
Assignee (at issue)
INA Acquisition Corp.
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.