Granted Patent
Utility
US 6,425,709 · App. 09/838,460
Line up of pipes or pipe components
Inventor:
Tom Laurent Hubert Frijns
Patented Case
View Patent ↗
Granted: Jul 30, 2002
Filed: Apr 18, 2001
Inventor
Tom Laurent Hubert Frijns
Assignee (at issue)
Heerema Marine Contractors Nederland SE
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.