Granted Patent
Utility
US 6,034,343 · App. 09/148,494
Hybrid welding apparatus
Inventors:
Yoshio Hashimoto, Takashi Ishide
Patented Case
View Patent ↗
Granted: Mar 7, 2000
Filed: Sep 4, 1998
Inventors
Yoshio Hashimoto
Takashi Ishide
Assignee (at issue)
MITSUBISHI ELECTRIC CORPORATION
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.