Granted Patent
Utility
US 6,427,602 · App. 09/897,256
Pipe crawler apparatus
Inventors:
Gregory Lee Hovis, Scott Erickson, Bruce L. Blackmon
Patented Case
View Patent ↗
Granted: Aug 6, 2002
Filed: Jul 2, 2001
Inventors
Gregory Lee Hovis
Scott Erickson
Bruce L. Blackmon
Assignee (at issue)
Westinghouse Savannah River 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.