Granted Patent
Utility
US 6,669,406 · App. 10/008,814
Method and apparatus for underground connection of pipe
Inventors:
William M. Hutton, Frank Russo, John K. Gilday, Michael G. Palmer
Patented Case
View Patent ↗
Granted: Dec 30, 2003
Filed: Nov 13, 2001
Inventors
William M. Hutton
Frank Russo
John K. Gilday
Michael G. Palmer
Assignee (at issue)
Omega Tools, Inc.
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.