Granted Patent
Utility
US 5,993,576 · App. 08/790,949
Wear resistant wrought aluminum alloy and scroll of wear-resistant wrought aluminum alloy
Inventors:
Akira Ichinose, Akira Hideno, Nobuaki Ohara
Patented Case
View Patent ↗
Granted: Nov 30, 1999
Filed: Jan 29, 1997
Inventors
Akira Ichinose
Akira Hideno
Nobuaki Ohara
Assignee (at issue)
FURUKAWA ELECTRIC CO., 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.