Granted Patent
Utility
US 5,033,344 · App. 07/613,998
Pipe cutting 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: Jul 23, 1991
Filed: Nov 14, 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.