Granted Patent
Utility
US 6,012,878 · App. 09/183,710
Pressure balanced subsea tapping machine
Inventor:
David J. Hicks
Patented Case
View Patent ↗
Granted: Jan 11, 2000
Filed: Oct 30, 1998
Inventor
David J. Hicks
Assignee (at issue)
TDW Delaware, 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.