Granted Patent
Utility
US 6,795,016 · App. 10/363,178
Jig for heat treatment of work
Inventors:
Masaaki Akiyama, Akira Ogishima, Kazumasa Sugiyama, Koichi Sakamoto, Kazumi Matsumoto
Patented Case
View Patent ↗
Granted: Sep 21, 2004
Filed: Mar 6, 2003
Inventors
Masaaki Akiyama
Akira Ogishima
Kazumasa Sugiyama
Koichi Sakamoto
Kazumi Matsumoto
Assignee (at issue)
USUI KOKUSAI SANGYO KAISHA LIMITED
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.