Granted Patent
Utility
US 5,319,441 · App. 08/114,287
Method and apparatus for detecting wavelength of laser beam
Inventors:
Mitsugu Terada, Ken Ohmata, Michito Uehara, Hideaki Shibata, Yasuo Oeda, Yuichiro Terashi
Patented Case
View Patent ↗
Granted: Jun 7, 1994
Filed: Sep 1, 1993
Inventors
Mitsugu Terada
Ken Ohmata
Michito Uehara
Hideaki Shibata
Yasuo Oeda
Yuichiro Terashi
Assignee (at issue)
Mitsui Petrochemical Industries, Ltd.
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.