Granted Patent
Utility
US 6,573,989 · App. 09/801,001
Spectrometer
Inventors:
Toru Suzuki, Osamu Wakabayashi
Patented Case
View Patent ↗
Granted: Jun 3, 2003
Filed: Mar 8, 2001
Inventors
Toru Suzuki
Osamu Wakabayashi
Assignee (at issue)
KOMATSU 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.