Granted Patent
Utility
US 5,458,441 · App. 08/327,128
Pipe section for installation into a subsea pipeline
Inventor:
Donald Barry
Patented Case
View Patent ↗
Granted: Oct 17, 1995
Filed: Oct 21, 1994
Inventor
Donald Barry
Assignee (at issue)
SHELL OIL 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.