Granted Patent
Utility
US 5,069,095 · App. 07/616,378
Pipe centering apparatus
Inventors:
Noboru Ohneda, Shunta Ushioda, Haruo Arima, Ichiro Hashimoto, Denziro Kaneko, Kazuo Sugiyama, Tsuguo Fukazawa, Teruo Tachi, Takashi Mukasa
Patented Case
View Patent ↗
Granted: Dec 3, 1991
Filed: Nov 21, 1990
Inventors
Noboru Ohneda
Shunta Ushioda
Haruo Arima
Ichiro Hashimoto
Denziro Kaneko
Kazuo Sugiyama
Tsuguo Fukazawa
Teruo Tachi
Takashi Mukasa
Assignee (at issue)
Showa Aluminum Corp.
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.