Granted Patent
Utility
US 6,561,280 · App. 10/068,782
Method of injecting tubing down pipelines
Inventors:
Benton Frederick Baugh, James R. Crawford
Patented Case
View Patent ↗
Granted: May 13, 2003
Filed: Feb 5, 2002
Inventors
Benton Frederick Baugh
James R. Crawford
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.