Granted Patent
Utility
US 6,002,129 · App. 09/078,470
Inductively coupled plasma mass spectrometric and spectrochemical analyzer
Inventors:
Tetsumasa Ito, Yoshitomo Nakagawa, Osamu Matsuzawa
Patented Case
View Patent ↗
Granted: Dec 14, 1999
Filed: May 14, 1998
Inventors
Tetsumasa Ito
Yoshitomo Nakagawa
Osamu Matsuzawa
Assignee (at issue)
SEIKO INSTRUMENTS INC.
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.