Granted Patent
Utility
US 6,814,143 · App. 10/215,167
Downhole tubular patch, tubular expander and method
Inventor:
Britt O. Braddick
Patented Case
View Patent ↗
Granted: Nov 9, 2004
Filed: Aug 8, 2002
Inventor
Britt O. Braddick
Assignee (at issue)
TIW 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.