Granted Patent
Utility
US 6,290,264 · App. 09/791,709
Piping structure
Inventor:
Tomoki Inoue
Patented Case
View Patent ↗
Granted: Sep 18, 2001
Filed: Feb 26, 2001
Inventor
Tomoki Inoue
Assignee (at issue)
TOKAI RUBBER INDUSTRIES, LTD.
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.